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Brand: Doctor's Best     Categories: Antioxidants / Immune


Best Fermented Superfoods











Doctor's Best

Best Fermented Superfoods


Veggie Cap





Best Fermented Superfoods

Best Fermented Superfoods  90  Veggie Cap

Supplement Facts

Serving Size: 1 Capsule

Amount per
% Daily*

Total Carbohydrate




preB® Proprietary Blend:
(Orange, pineapple, banana, apple, papaya, guava, melon, brown rice, oat, corn, barley, pea, jalo bean, roxinho bean, black sesame seed, millet, plum, azuki bean, soy bean, carrot, rye grain, black bean, lentil bean, avocado, acerola, lemon, pear, tomato, red grape, mango, watermelon, sweet potato, chick pea, carambola, cashew nut, brazil nut, kiwi, cassava root, green bell pepper, sugar beet (root) collard greens (leaves), cabbage, passion fruit, chicory (leaves) lemon grass (stem), lotus root, turnip (root), seaweed (kombu), maté (leaves), cinnamon (bark), anise (fruit), cloves (flower bud), ginger (root), zedoary (root), spring water, organic unrefined cane sugar), vegetable glycerin.




*Percent Daily Values are based on the 2000 Calorie Diet. Your daily values may be higher or lower depending on your calorie needs.
**Daily value not established.

Other Ingredients: Modified cellulose (vegetarian capsule).

Contains: Tree Nuts and Soybeans

Suggested Adult Use: Take 1 capsules three times daily, with or without food.


Best Fermented Superfoods features preB®, a unique combination of over 50 macrobiotic ingredients crafted into a liquid with modern fermentation techniques. The ingredients honor the centuries-old tradition of macrobiotics popularized in the U.S. by Michio Kushi, who also spearheaded the creation of preB®. Fermented foods have always been part of the ideal diet. The ancient wisdom of consuming fermented foods is today a major area of research. Studies are beginning to define how fermentation enhances nutrients and creates bioactive compounds that have the potential to support several areas of health.*

Supports Intestinal Health*

The preB® in Best Fermented Superfoods is derived from health-promoting macrobiotic source foods including fruits, vegetables, legumes, grains, nuts, seeds, and spices. In addition to nutrients, these source foods contain countless natural phytochemicals and bioactive compounds, many of which are considered as contributing to human health. Fermentation further endows these foods with yet more potential for health benefits. Cabbage, one of the source foods in Best Fermented Superfoods, contains compounds called glucosinolates. During fermentation, breakdown products of glucosinolates form, most notably isothiocyanates, indole-3-carbinol, and sulforaphane. These newly formed fermentation compounds have potential health benefits; for example, glucosinolate breakdown products are believed to enhance the synthesis of detoxification enzymes.4 Numerous studies conducted on kimchi—a popular Korean preparation of fermented vegetables—reveal many potential benefits, such as increased activities of liver enzymes that help rid the body of foreign compounds.1

Research on preB®, the active ingredient in Best Fermented Superfoods

The impact of preB® administration in humans has been investigated in Japan, Brazil, China, and the United States. A common finding in all four trials was an excellent safety profile for preB®. In a randomized, double-blind study of 75 subjects given either preB® or placebo for 6 weeks, 43 metabolic parameters were assessed before and after the supplementation.5 No adverse events were reported in either group. An interesting find was a statistically significant difference in the Erythrocyte Sedimentation Rate (ESR) between groups. The ESR measurement was surmised to be a signal that preB® promoted a decline in non-specific immune system overreaction. In a Japanese pilot study of 30 healthy subjects given high-dose preB® supplements for 90 days, changes in several species of intestinal bacterial flora were documented.6 In an exploratory Brazilian trial of 30 subjects, preB® appears to have influenced blood quality, including a tonic effect on red blood cells. In Chinese research, preB® supplementation was cited as promoting healthy bowel function, in addition to showing several other effects spanning numerous areas of health. While results from all of these preB® studies are intriguing, larger randomized controlled trials of longer duration are called for in order to make strong conclusions about the utility of preB® for enhancing cardiovascular and immune system function in healthy individuals.

Scientific References:

1. Farnworth, E.R., Handbook of fermented functional foods. Functional Foods: Biochemical and Processing Aspects. 2003, Boca Raton, FL: CRC Press. 600 pgs

2. Steinkraus, K., Introduction to Indigenous Fermented Foods, in Handbook of indigenous fermented foods, K. Steinkraus, Editor. 1996, Marcel Dekker: New York, New York. p. 1-4.
3. Farnworth, E.R., Chapter 17: Probiotics and Prebiotics, in Handbook of Nutraceuticals and Functional Foods. 2001, CRC Press. p. 335-352.
4. Tolonen, M., et al., Plant-derived biomolecules in fermented cabbage. J Agric Food Chem, 2002. 50(23): p. 6798-803.
5. Nelson, J. and H. Kadish, Study of preB dietary supplement: a randomized, placebo controlled, double blind trial. 2010, Vivo Research and Testing: Salt Lake City. p. 1-8.
6. Ryuichi, H., Safety study on preB. 2008, Research Center for Medical Environment, Division of Biomedical Research, Kitasato Institute Medical Center, Hospital Kitasato University, The Kitasato Institute: Tokyo. p. 1-59.






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