Dietary supplements by definition do not treat, prevent, or cure a disease and cannot claim to on labels or in advertising. However, plant extracts are continually being studied for their potential to maintain health and affect the disease process. Clinical trials are being conducted, aiming to figure out whether certain plant extracts could affect cancer-related biomarkers, act as beneficial adjunct treatments to be used with chemotherapy, or help to prevent progression of an early stage cancer or pre-cancerous condition.
Diet is a known modulator of common chronic diseases, such as heart disease, diabetes, and cancer. Diets higher in vegetables, fruit, beans, nuts and seeds, and lower in high-glycemic processed foods, oils, sugars, and animal products are associated with a lower risk of these diseases. Underlying processes such as oxidative damage, effects of elevated blood glucose, and chronic inflammation are contributing factors to aging, poor health, and multiple chronic diseases. In contrast, minimizing oxidative damage, supporting DNA repair mechanisms, keeping immune cells working properly, and keeping glucose and inflammatory markers in a healthy range help to promote good health. The primary way we accomplish this is through a healthful diet, but there are supplements that may complement those efforts.
Mushroom extracts
Research has shown that some mushroom species may promote the proper function of many different types of immune cells, including the ability of natural killer(NK) cells to attack cancerous and virus-infected cells.1-19 Concentrated mushroom extracts have been studied in human clinical trials as an adjunct to chemotherapy in cancer, aiming to reduce the immunosuppressive effects of chemotherapy, with positive results. 4, 5, 9, 19-28
In these clinical trials, concentrated extracts used in high doses were used, more than a healthy person would take in a supplement. My opinion is that it is likely beneficial for the immune system to take in a small dose of supplemental mushroom phytochemicals, since most people don’t regularly eat a large quantity and variety of different mushrooms in their day to day diet. This was my rationale for offering Immune Biotect.
Green tea
Research on green tea in vitro (using cells in culture) has shown anti-cancer effects – modulating signaling pathways that affect DNA repair, inflammation, proliferation, apoptosis, metastasis, and angiogenesis.29-41 Observational studies suggest that drinking green tea regularly reduces the risk of lung cancer, breast cancer, prostate cancer, and death from cardiovascular disease.42-47 In clinical trials, green tea extract helped to protect against UV-induced DNA damage in the skin, enhance antioxidant status, and improve blood glucose and cardiovascular risk factors.31, 48-51 In men with prostate cancer, clinical trials on green tea or green tea supplements have shown reduced PSA and other cancer-related biomarkers.52, 53 Supplementation with EGCG reduced cancer-related biomarkers in women with breast cancer.54 Green tea supplementation also reduced the risk of recurrence of colorectal adenoma (a precancerous lesion) compared to placebo.55 One notable study in humans investigated a supplement containing green tea-derived catechins plus Capsicum annuum in people who tested positive on an ONCOblot® (which indicates very early stage cancers) and showed promising results. The majority showed reversal of the early stage cancers.56 More research is needed to determine whether supplements containing green tea or green tea plus Capsicum annuum are an effective component of cancer prevention or treatment. I often recommend green tea supplementation to patients who have cancer or who are at risk.
Turmeric/curcumin
Curcuminoids (curcumin, bisdemethoxycurcumin, and demethoxycurcumin), the most widely studied phytochemicals from the turmeric root, have displayed multiple anti-cancer effects in vitro, primarily by modulating the activity of a key regulator of inflammation, the transcription factor NF-kB.57-59 New research is revealing that other turmeric phytochemicals may also have anti-inflammatory and anti-cancer effects in cultured cells.60 In human trials, decreased inflammatory biomarkers with curcumin (complexed with piperine to enhance absorption61) has been confirmed, plus reduced oxidative stress, beneficial effects on cholesterol and triglyceride levels, and potentially therapeutic effects on arthritis have been observed.62-65 There have been some early clinical trials relevant to cancer; suggesting improvement in cancer-related biomarkers in patients with pancreatic cancer and colorectal cancer, reduced oxidative DNA damage in patients with colorectal cancer, and reduced colorectal aberrant crypt foci (precursor to polyps) in smokers. Clinical trials continue, and it is not yet known whether curcumin supplements will prove to be a valuable component of prevention of progression for precancerous conditions.66
Grape seed
Grape seed extracts have shown anti-cancer activities in cell culture and animal studies. Grape seed proanthocyanidins inhibit aromatase (an enzyme that produces estrogen), and modulates signaling pathways that affect inflammation, cancer cell proliferation and apoptosis, and angiogenesis. 67, 68
In human trials, grape seed extract has been found to reduce blood pressure, improve antioxidant status, reduce inflammatory markers, and reduce LDL cholesterol and oxidized LDL.69-72 Regarding cancer, clinical trials are now in progress, evaluating whether grape seed extract is helpful for reducing inflammation in patients with cancer, and preventing breast cancer in women at high risk. The results of these and upcoming trials will help to determine whether grape seed is a valuable adjunct therapy for cancers.
Kaempferia parviflora
In vitro, Kaempferia parviflora (KP; black turmeric) phytochemicals are known to potently activate the SIRT1 enzyme, which is thought to be a link between caloric restriction and longevity. KP also has anti-inflammatory effects and protects against oxidative stress in vitro.73-75 Studies in humans suggest that KP supplementation enhances antioxidant defenses, helps keep blood glucose in the healthy range, reduces production of advanced glycation end products (AGEs), and limits accumulation of visceral fat 76, 77
Ultra Cell Biotect
I take this research into account when designing the supplements I offer, Ultra Cell Biotect in particular. The evidence on green tea, turmeric, grape seed, and black turmeric is promising, but not conclusive. We still don’t know for sure whether people who take these extracts as dietary supplements will realize the benefits suggested by the existing research. Doses and extract methods differ between different studies, and the research on these plants is ongoing. Though the research is not yet conclusive, the findings so far encouraged me to provide Ultra Cell Biotect for those who wish to act on the evidence sooner, especially my patients who have medical conditions that could potentially benefit from these plant extracts. Consult with a physician before starting Ultra Cell Biotect, or any of the individual plant extracts, especially if you do have a medical condition, as plant extracts can interact with certain drugs and treatments.
References
Borchers AT, Krishnamurthy A, Keen CL, et al. The Immunobiology of Mushrooms.Exp Biol Med 2008, 233:259-276.
Wachtel-Galor S, Yuen J, Buswell JA, Benzie IFF: Ganoderma lucidum (Lingzhi or Reishi): A Medicinal Mushroom. In Herbal Medicine: Biomolecular and Clinical Aspects. 2nd edition. Edited by Benzie IFF, Wachtel-Galor S. Boca Raton (FL)2011
Lin ZB. Cellular and molecular mechanisms of immuno-modulation by Ganoderma lucidum.J Pharmacol Sci 2005, 99:144-153.
Mayell M. Maitake extracts and their therapeutic potential.Altern Med Rev 2001, 6:48-60.
Hetland G, Johnson E, Lyberg T, Kvalheim G. The Mushroom Agaricus blazei Murill Elicits Medicinal Effects on Tumor, Infection, Allergy, and Inflammation through Its Modulation of Innate Immunity and Amelioration of Th1/Th2 Imbalance and Inflammation.Adv Pharmacol Sci 2011, 2011:157015.
Yoon TJ, Yu KW, Shin KS, Suh HJ. Innate immune stimulation of exo-polymers prepared from Cordyceps sinensis by submerged culture.Appl Microbiol Biotechnol 2008, 80:1087-1093.
Jordan JL, Sullivan AM, Lee TD. Immune activation by a sterile aqueous extract of Cordyceps sinensis: mechanism of action.Immunopharmacol Immunotoxicol 2008, 30:53-70.
Zhang J, Yu Y, Zhang Z, et al. Effect of polysaccharide from cultured Cordyceps sinensis on immune function and anti-oxidation activity of mice exposed to 60Co.Int Immunopharmacol 2011, 11:2251-2257.
Yamaguchi Y, Miyahara E, Hihara J. Efficacy and safety of orally administered Lentinula edodes mycelia extract for patients undergoing cancer chemotherapy: a pilot study.Am J Chin Med 2011, 39:451-459.
Gaullier JM, Sleboda J, Ofjord ES, et al. Supplementation with a soluble beta-glucan exported from Shiitake medicinal mushroom, Lentinus edodes (Berk.) singer mycelium: a crossover, placebo-controlled study in healthy elderly.Int J Med Mushrooms 2011, 13:319-326.
Lee JS, Min KM, Cho JY, Hong EK. Study of macrophage activation and structural characteristics of purified polysaccharides from the fruiting body of Hericium erinaceus.J Microbiol Biotechnol 2009, 19:951-959.
Kim SP, Kang MY, Kim JH, et al. Composition and mechanism of antitumor effects of Hericium erinaceus mushroom extracts in tumor-bearing mice.Journal of Agricultural and Food Chemis ry 2011, 59:9861-9869.
Li X, Xu W. TLR4-mediated activation of macrophages by the polysaccharide fraction from Polyporus umbellatus(pers.) Fries.J Ethnopharmacol 2011, 135:1-6.
Li X, Xu W, Chen J. Polysaccharide purified from Polyporus umbellatus (Per) Fr induces the activation and maturation of murine bone-derived dendritic cells via toll-like receptor 4.Cell Immunol 2010, 265:50-56.
Matsuba S, Matsuno H, Sakuma M, Komatsu Y. Phellinus linteus Extract Augments the Immune Response in Mitomycin C-Induced Immunodeficient Mice.Evid Based Complement Alternat Med 2008, 5:85-90.
Kim GY, Lee JY, Lee JO, et al. Partial characterization and immunostimulatory effect of a novel polysaccharide-protein complex extracted from Phellinus linteus.Biosci Biotechnol Biochem 2006, 70:1218-1226.
Kim HM, Han SB, Oh GT, et al. Stimulation of humoral and cell mediated immunity by polysaccharide from mushroom Phellinus linteus.Int J Immunopharmacol 1996, 18:295-303.
Won DP, Lee JS, Kwon DS, et al. Immunostimulating activity by polysaccharides isolated from fruiting body of Inonotus obliquus.Mol Cells 2011, 31:165-173.
Jin X, Ruiz Beguerie J, Sze DM, Chan GC. Ganoderma lucidum (Reishi mushroom) for cancer treatment.Cochrane Database Syst Rev 2012, 6:CD007731.
Ramberg JE, Nelson ED, Sinnott RA. Immunomodulatory dietary polysaccharides: a systematic review of the literature.Nutr J 2010, 9:54.
Standish LJ, Wenner CA, Sweet ES, et al. Trametes versicolor mushroom immune therapy in breast cancer.J Soc Integr Oncol 2008, 6:122-128.
Maehara Y, Tsujitani S, Saeki H, et al. Biological mechanism and clinical effect of protein-bound polysaccharide K (KRESTIN((R))): review of development and future perspectives.Surg Today 2012, 42:8-28.
Hazama S, Watanabe S, Ohashi M, et al. Efficacy of orally administered superfine dispersed lentinan (beta-1,3-glucan) for the treatment of advanced colorectal cancer.Anticancer Res 2009, 29:2611-2617.
Higashi D, Seki K, Ishibashi Y, et al. The effect of lentinan combination therapy for unresectable advanced gastric cancer.Anticancer Res 2012, 32:2365-2368.
Isoda N, Eguchi Y, Nukaya H, et al. Clinical efficacy of superfine dispersed lentinan (beta-1,3-glucan) in patients with hepatocellular carcinoma.Hepatogastroenterology 2009, 56:437-441.
Oba K, Kobayashi M, Matsui T, et al. Individual patient based meta-analysis of lentinan for unresectable/recurrent gastric cancer.Anticancer Res 2009, 29:2739-2745.
Shimizu K, Watanabe S, Watanabe S, et al. Efficacy of oral administered superfine dispersed lentinan for advanced pancreatic cancer.Hepatogastroenterology 2009, 56:240-244.
Yoshino S, Watanabe S, Imano M, et al. Improvement of QOL and prognosis by treatment of superfine dispersed lentinan in patients with advanced gastric cancer.Hepatogastroenterology 2010, 57:172-177.
Singh BN, Shankar S, Srivastava RK. Green tea catechin, epigallocatechin-3-gallate (EGCG): mechanisms, perspectives and clinical applications.Biochem Pharmacol 2011, 82:1807-1821.
Singh T, Katiyar SK. Green tea catechins reduce invasive potential of human melanoma cells by targeting COX-2, PGE2 receptors and epithelial-to-mesenchymal transition.PLoS One 2011, 6:e25224.
Khan N, Mukhtar H. Cancer and metastasis: prevention and treatment by green tea.Cancer Metastasis Rev 2010, 29:435-445.
Chen L, Zhang HY. Cancer preventive mechanisms of the green tea polyphenol (-)-epigallocatechin-3-gallate.Molecules 2007, 12:946-957.
Ho CK, Choi SW, Siu PM, Benzie IF. Effects of single dose and regular intake of green tea (Camellia sinensis) on DNA damage, DNA repair, and heme oxygenase-1 expression in a randomized controlled human supplementation study.Mol Nutr Food Res 2014, 58:1379-1383.
Jung YD, Ellis LM. Inhibition of tumour invasion and angiogenesis by epigallocatechin gallate (EGCG), a major component of green tea.Int J Exp Pathol 2001, 82:309-316.
Rodriguez SK, Guo W, Liu L, et al. Green tea catechin, epigallocatechin-3-gallate, inhibits vascular endothelial growth factor angiogenic signaling by disrupting the formation of a receptor complex.International journal of cancer Journal international du cancer 2006, 118:1635-1644.
Domingo DS, Camouse MM, Hsia AH, et al. Anti-angiogenic effects of epigallocatechin-3-gallate in human skin.International journal of clinical and experimental pathology 2010, 3:705-709.
Murugan RS, Vinothini G, Hara Y, Nagini S. Black tea polyphenols target matrix metalloproteinases, RECK, proangiogenic molecules and histone deacetylase in a rat hepatocarcinogenesis model.Anticancer Res 2009, 29:2301-2305.
Hussain T, Gupta S, Adhami VM, Mukhtar H. Green tea constituent epigallocatechin-3-gallate selectively inhibits COX-2 without affecting COX-1 expression in human prostate carcinoma cells.Int J Cancer 2005, 113:660-669.
Peng G, Dixon DA, Muga SJ, et al. Green tea polyphenol (-)-epigallocatechin-3-gallate inhibits cyclooxygenase-2 expression in colon carcinogenesis.Mol Carcinog 2006, 45:309-319.
Fuhrman BJ, Schairer C, Gail MH, et al. Estrogen metabolism and risk of breast cancer in postmenopausal women.J Natl Cancer Inst 2012, 104:326-339.
Monteiro R, Azevedo I, Calhau C. Modulation of aromatase activity by diet polyphenolic compounds.J Agric Food Chem 2006, 54:3535-3540.
Green tea, black tea consumption and risk of lung cancer: a meta-analysis. Lung Cancer 2009, 65:274-283.
Sun CL, Yuan JM, Koh WP, Yu MC. Green tea, black tea and breast cancer risk: a meta-analysis of epidemiological studies.Carcinogenesis 2006, 27:1310-1315.
Ogunleye AA, Xue F, Michels KB. Green tea consumption and breast cancer risk or recurrence: a meta-analysis.Breast Cancer Res Treat 2010, 119:477-484.
Khan N, Adhami VM, Mukhtar H. Review: green tea polyphenols in chemoprevention of prostate cancer: preclinical and clinical studies.Nutr Cancer 2009, 61:836-841.
Zheng J, Yang B, Huang T, et al. Green Tea and Black Tea Consumption and Prostate Cancer Risk: An Exploratory Meta-Analysis of Observational Studies.Nutr Cancer 2011:1-10.
Kuriyama S, Shimazu T, Ohmori K, et al. Green tea consumption and mortality due to cardiovascular disease, cancer, and all causes in Japan: the Ohsaki study.JAMA 2006, 296:1255-1265.
Heinrich U, Moore CE, De Spirt S, et al. Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women.J Nutr 2011, 141:1202-1208.
Morley N, Clifford T, Salter L, et al. The green tea polyphenol (-)-epigallocatechin gallate and green tea can protect human cellular DNA from ultraviolet and visible radiation-induced damage.Photodermatol Photoimmunol Photomed 2005, 21:15-22.
Pietta P, Simonetti P, Gardana C, et al. Relationship between rate and extent of catechin absorption and plasma antioxidant status.Biochem Mol Biol Int 1998, 46:895-903.
Belcaro G, Ledda A, Hu S, et al. Greenselect phytosome for borderline metabolic syndrome.Evid Based Complement Alternat Med 2013, 2013:869061.
McLarty J, Bigelow RL, Smith M, et al. Tea polyphenols decrease serum levels of prostate-specific antigen, hepatocyte growth factor, and vascular endothelial growth factor in prostate cancer patients and inhibit production of hepatocyte growth factor and vascular endothelial growth factor in vitro.Cancer Prev Res (Phila) 2009, 2:673-682.
Henning SM, Wang P, Said JW, et al. Randomized clinical trial of brewed green and black tea in men with prostate cancer prior to prostatectomy.Prostate 2015, 75:550-559.
Zhang G, Wang Y, Zhang Y, et al. Anti-cancer activities of tea epigallocatechin-3-gallate in breast cancer patients under radiotherapy.Curr Mol Med 2012, 12:163-176.
Shimizu M, Fukutomi Y, Ninomiya M, et al. Green tea extracts for the prevention of metachronous colorectal adenomas: a pilot study.Cancer Epidemiol Biomarkers Prev 2008, 17:3020-3025.
Hanau C, Morre DJ, Morre DM. Cancer prevention trial of a synergistic mixture of green tea concentrate plus Capsicum (CAPSOL-T) in a random population of subjects ages 40-84.Clin Proteomics 2014, 11:2.
Singh S, Aggarwal BB. Activation of transcription factor NF-kappa B is suppressed by curcumin (diferuloylmethane) [corrected].J Biol Chem 1995, 270:24995-25000.
Sandur SK, Pandey MK, Sung B, et al. Curcumin, demethoxycurcumin, bisdemethoxycurcumin, tetrahydrocurcumin and turmerones differentially regulate anti-inflammatory and anti-proliferative responses through a ROS-independent mechanism.Carcinogenesis 2007, 28:1765-1773.
Aggarwal BB. Nuclear factor-kappaB: the enemy within.Cancer Cell 2004, 6:203-208.
Aggarwal BB, Yuan W, Li S, Gupta SC. Curcumin-free turmeric exhibits anti-inflammatory and anticancer activities: Identification of novel components of turmeric.Mol Nutr Food Res 2013, 57:1529-1542.
Shoba G, Joy D, Joseph T, et al. Influence of piperine on the pharmacokinetics of curcumin in animals and human volunteers.Planta Med 1998, 64:353-356.
Mirzabeigi P, Mohammadpour AH, Salarifar M, et al. The Effect of Curcumin on some of Traditional and Non-traditional Cardiovascular Risk Factors: A Pilot Randomized, Double-blind, Placebo-controlled Trial.Iran J Pharm Res 2015, 14:479-486.
Panahi Y, Alishiri GH, Parvin S, Sahebkar A. Mitigation of Systemic Oxidative Stress by Curcuminoids in Osteoarthritis: Results of a Randomized Controlled Trial.J Diet Suppl 2016, 13:209-220.
Panahi Y, Hosseini MS, Khalili N, et al. Antioxidant and anti-inflammatory effects of curcuminoid-piperine combination in subjects with metabolic syndrome: A randomized controlled trial and an updated meta-analysis.Clin Nutr 2015, 34:1101-1108.
Panahi Y, Rahimnia AR, Sharafi M, et al. Curcuminoid Treatment for Knee Osteoarthritis: A Randomized Double-Blind Placebo-Controlled Trial.Phytother Res 2014.
Park W, Amin AR, Chen ZG, Shin DM. New perspectives of curcumin in cancer prevention.Cancer Prev Res (Phila) 2013, 6:387-400.
Katiyar SK, Athar M. Grape seeds: ripe for cancer chemoprevention.Cancer Prev Res (Phila) 2013, 6:617-621.
Eng ET, Ye J, Williams D, et al. Suppression of estrogen biosynthesis by procyanidin dimers in red wine and grape seeds.Cancer Res 2003, 63:8516-8522.
Belcaro G, Ledda A, Hu S, et al. Grape seed procyanidins in pre- and mild hypertension: a registry study.Evid Based Complement Alternat Med 2013, 2013:313142.
Irandoost P, Ebrahimi-Mameghani M, Pirouzpanah S. Does grape seed oil improve inflammation and insulin resistance in overweight or obese women?Int J Food Sci Nutr 2013, 64:706-710.
Razavi SM, Gholamin S, Eskandari A, et al. Red grape seed extract improves lipid profiles and decreases oxidized low-density lipoprotein in patients with mild hyperlipidemia.J Med Food 2013, 16:255-258.
Kar P, Laight D, Rooprai HK, et al. Effects of grape seed extract in Type 2 diabetic subjects at high cardiovascular risk: a double blind randomized placebo controlled trial examining metabolic markers, vascular tone, inflammation, oxidative stress and insulin sensitivity.Diabet Med 2009, 26:526-531.
Nakata A, Koike Y, Matsui H, et al. Potent SIRT1 enzyme-stimulating and anti-glycation activities of polymethoxyflavonoids from Kaempferia parviflora.Nat Prod Commun 2014, 9:1291-1294.
Canto C, Auwerx J. Caloric restriction, SIRT1 and longevity.Trends Endocrinol Metab 2009, 20:325-331.
Horigome S, Yoshida I, Ito S, et al. Inhibitory effects of Kaempferia parviflora extract on monocyte adhesion and cellular reactive oxygen species production in human umbilical vein endothelial cells.Eur J Nutr 2015.
Wattanathorn J, Muchimapura S, Tong-Un T, et al. Positive Modulation Effect of 8-Week Consumption of Kaempferia parviflora on Health-Related Physical Fitness and Oxidative Status in Healthy Elderly Volunteers.Evid Based Complement Alternat Med 2012, 2012:732816.
Shimada N. The safety and efficacy of Kamepferia parviflora extract (SIRTMAX®) on healthy volunteers.(Unpublished) 2012, http://maypro.com/products/sirtmax#_ednref1.
Joel Fuhrman, M.D. is a board-certified family physician, seven-time New York Times bestselling author and internationally recognized expert on nutrition and natural healing, who specializes in preventing and reversing disease through nutritional methods. Dr. Fuhrman coined the term “Nutritarian” to describe his longevity-promoting, nutrient dense, plant-rich eating style.
For over 30 years, Dr. Fuhrman has shown that it is possible to achieve sustainable weight loss and reverse heart disease, diabetes and many other illnesses using smart nutrition. In his medical practice, and through his books and PBS television specials, he continues to bring this life-saving message to hundreds of thousands of people around the world.
Do you have a supplement formulated specifically to enhance protection against cancer?
January 10, 2017 by Joel Fuhrman, MD
Dietary supplements by definition do not treat, prevent, or cure a disease and cannot claim to on labels or in advertising. However, plant extracts are continually being studied for their potential to maintain health and affect the disease process. Clinical trials are being conducted, aiming to figure out whether certain plant extracts could affect cancer-related biomarkers, act as beneficial adjunct treatments to be used with chemotherapy, or help to prevent progression of an early stage cancer or pre-cancerous condition.
Diet is a known modulator of common chronic diseases, such as heart disease, diabetes, and cancer. Diets higher in vegetables, fruit, beans, nuts and seeds, and lower in high-glycemic processed foods, oils, sugars, and animal products are associated with a lower risk of these diseases. Underlying processes such as oxidative damage, effects of elevated blood glucose, and chronic inflammation are contributing factors to aging, poor health, and multiple chronic diseases. In contrast, minimizing oxidative damage, supporting DNA repair mechanisms, keeping immune cells working properly, and keeping glucose and inflammatory markers in a healthy range help to promote good health. The primary way we accomplish this is through a healthful diet, but there are supplements that may complement those efforts.
Mushroom extracts
Research has shown that some mushroom species may promote the proper function of many different types of immune cells, including the ability of natural killer(NK) cells to attack cancerous and virus-infected cells.1-19 Concentrated mushroom extracts have been studied in human clinical trials as an adjunct to chemotherapy in cancer, aiming to reduce the immunosuppressive effects of chemotherapy, with positive results. 4, 5, 9, 19-28
In these clinical trials, concentrated extracts used in high doses were used, more than a healthy person would take in a supplement. My opinion is that it is likely beneficial for the immune system to take in a small dose of supplemental mushroom phytochemicals, since most people don’t regularly eat a large quantity and variety of different mushrooms in their day to day diet. This was my rationale for offering Immune Biotect.
Green tea
Research on green tea in vitro (using cells in culture) has shown anti-cancer effects – modulating signaling pathways that affect DNA repair, inflammation, proliferation, apoptosis, metastasis, and angiogenesis.29-41 Observational studies suggest that drinking green tea regularly reduces the risk of lung cancer, breast cancer, prostate cancer, and death from cardiovascular disease.42-47 In clinical trials, green tea extract helped to protect against UV-induced DNA damage in the skin, enhance antioxidant status, and improve blood glucose and cardiovascular risk factors.31, 48-51 In men with prostate cancer, clinical trials on green tea or green tea supplements have shown reduced PSA and other cancer-related biomarkers.52, 53 Supplementation with EGCG reduced cancer-related biomarkers in women with breast cancer.54 Green tea supplementation also reduced the risk of recurrence of colorectal adenoma (a precancerous lesion) compared to placebo.55 One notable study in humans investigated a supplement containing green tea-derived catechins plus Capsicum annuum in people who tested positive on an ONCOblot® (which indicates very early stage cancers) and showed promising results. The majority showed reversal of the early stage cancers.56 More research is needed to determine whether supplements containing green tea or green tea plus Capsicum annuum are an effective component of cancer prevention or treatment. I often recommend green tea supplementation to patients who have cancer or who are at risk.
Turmeric/curcumin
Curcuminoids (curcumin, bisdemethoxycurcumin, and demethoxycurcumin), the most widely studied phytochemicals from the turmeric root, have displayed multiple anti-cancer effects in vitro, primarily by modulating the activity of a key regulator of inflammation, the transcription factor NF-kB.57-59 New research is revealing that other turmeric phytochemicals may also have anti-inflammatory and anti-cancer effects in cultured cells.60 In human trials, decreased inflammatory biomarkers with curcumin (complexed with piperine to enhance absorption61) has been confirmed, plus reduced oxidative stress, beneficial effects on cholesterol and triglyceride levels, and potentially therapeutic effects on arthritis have been observed.62-65 There have been some early clinical trials relevant to cancer; suggesting improvement in cancer-related biomarkers in patients with pancreatic cancer and colorectal cancer, reduced oxidative DNA damage in patients with colorectal cancer, and reduced colorectal aberrant crypt foci (precursor to polyps) in smokers. Clinical trials continue, and it is not yet known whether curcumin supplements will prove to be a valuable component of prevention of progression for precancerous conditions.66
Grape seed
Grape seed extracts have shown anti-cancer activities in cell culture and animal studies. Grape seed proanthocyanidins inhibit aromatase (an enzyme that produces estrogen), and modulates signaling pathways that affect inflammation, cancer cell proliferation and apoptosis, and angiogenesis. 67, 68
In human trials, grape seed extract has been found to reduce blood pressure, improve antioxidant status, reduce inflammatory markers, and reduce LDL cholesterol and oxidized LDL.69-72 Regarding cancer, clinical trials are now in progress, evaluating whether grape seed extract is helpful for reducing inflammation in patients with cancer, and preventing breast cancer in women at high risk. The results of these and upcoming trials will help to determine whether grape seed is a valuable adjunct therapy for cancers.
Kaempferia parviflora
In vitro, Kaempferia parviflora (KP; black turmeric) phytochemicals are known to potently activate the SIRT1 enzyme, which is thought to be a link between caloric restriction and longevity. KP also has anti-inflammatory effects and protects against oxidative stress in vitro.73-75 Studies in humans suggest that KP supplementation enhances antioxidant defenses, helps keep blood glucose in the healthy range, reduces production of advanced glycation end products (AGEs), and limits accumulation of visceral fat 76, 77
Ultra Cell Biotect
I take this research into account when designing the supplements I offer, Ultra Cell Biotect in particular. The evidence on green tea, turmeric, grape seed, and black turmeric is promising, but not conclusive. We still don’t know for sure whether people who take these extracts as dietary supplements will realize the benefits suggested by the existing research. Doses and extract methods differ between different studies, and the research on these plants is ongoing. Though the research is not yet conclusive, the findings so far encouraged me to provide Ultra Cell Biotect for those who wish to act on the evidence sooner, especially my patients who have medical conditions that could potentially benefit from these plant extracts. Consult with a physician before starting Ultra Cell Biotect, or any of the individual plant extracts, especially if you do have a medical condition, as plant extracts can interact with certain drugs and treatments.
Joel Fuhrman, M.D. is a board-certified family physician, seven-time New York Times bestselling author and internationally recognized expert on nutrition and natural healing, who specializes in preventing and reversing disease through nutritional methods. Dr. Fuhrman coined the term “Nutritarian” to describe his longevity-promoting, nutrient dense, plant-rich eating style.
For over 30 years, Dr. Fuhrman has shown that it is possible to achieve sustainable weight loss and reverse heart disease, diabetes and many other illnesses using smart nutrition. In his medical practice, and through his books and PBS television specials, he continues to bring this life-saving message to hundreds of thousands of people around the world.