I hope you had a great weekend! All I can say is WHAT…A…WEEK!! I’ve been in LA for only one week this trip, but I feel like I squeezed in about a month’s worth. I’m exhausted, but truly exhilarated about all the amazing things that I got to do and be a part of.

I wanted to write more about soy today, because I tweeted about it last week and there was a lot of interest. My friends that have been reading my blog a long time know that I have long NOT been a fan of soy. Soy is a low-mineral food that is very allergenic to many people. Over 90% of soy in our country is genetically modified (GMO).

There are so many reasons not to eat soy, and it is distressing to me that many health care professionals promote the consumption of soy. The heavily lobbyists of the soy industry would all have us believe soy was a miracle health food- that is until we start to investigate on our own.

Don’t think you get soy in your diet because you don’t eat tofu? Unfortunately, being the sneaky food that soy is, it permeates our diet in the form of soy protein isolates, hydrolyzed vegetable protein (HVP), textured vegetable protein (TVP), and is disguised by many other names. We don’t want to eat any “fake” meat or other disgusting forms of processed vegetarian foods-gross!! And read labels! A Cliff bar brings in a whopping 20 grams of soy protein, a ZonePerfect bar 15 grams, and a Boca Burger 13 grams. All such foods should be avoided.

Today I wanted to list a few facts with some sources. Check it out!

–    Soy contains isoflavones, specifically genistein and daidzein. These are estrogen-like substances that have the same effect in the body as estrogen. When we eat lots of soy we can become estrogenic, which contributes to such problems as cancer, irritability and mood swings, fat gain around the waist, hips and thighs, fibrocystic breast disease and uterine fibroids.

Casanova, M. et al. “Developmental effects of dietary phytoestrogens in Sprague.” Toxicol Sci, Oct. 1999, 51 (2): 236-244.

Santell, L, et al. “Dietary genistein exerts estrogenic effects upon uterus, mammary gland and the hypothalamic/pituitary axis in rats.” J Nutr, Feb. 1997, 127(2) 263-269.

–   Soy may be connected with Alzheimer’s Disease. In studies in Japan and Hawai, men who consumed tofu at least twice weekly had more cognitive imprairment than those who rarely or never consume it.

White, L R., Petrorich, H, Ross, G W, and Masaki, K H. “Association of mid-life consumption of tofu with late life cognitive impairment and dimentia: the Honolulu-Asia Aging Study.” Fifth International Conference on Alzheimer’s Disease, #487, 27 July 1996, Osaka, Japan.

White, LR, Petrovitch, H, Ross, G w, Masaki, K H, Hardman, J, Nelson. J, Davis. D, and Markesbery, W. “Brain again and midlife tofu consumption.” J Am Coll Nutr, April 2000, 19(2): 242-2555.

–    High soy intake for men increases the probability of estrogen dominance in men, which contributes to hair loss, swollen prostates, and other issues. Dorris Rapp, MD is the leading pediatric allergist, asserts that “environment and food estrogens are responsible for world-wide reduction in male fertility”.

Nagata, C, et al. “Inverse association of soy product intake with serum androgen and estrogen in Japanese men.” Nutr Cancer, 2000, 36(1):14-18.

Zhong, Ying, et al. “Effects of dietary supplmentt of soy protein isolate and low fat diet on prostate cancer.” FASEB J, 2000, 14(4):a531.11.

–   The amount of phytoestrogens that are in a day’s worth of soy infant formula equals 5 birth control pills.

“Soy Infant Formula Could be Harmful to Infants.” Nutrition Week, Dec. 10, 1999, 29(46):1-2.

–   Soy is a mineral-deficient food, and contains phytin, which chelates essential minerals such as iron, zinc and magnesium out of the body before they can be absorbed.

–   The new IGF-1 data potentially places soy in the category of a powerful cancer promoter of the breast, prostate, lung and colon.

Yu, H. “Role of the insulin-like growth factor family in cancer development and progression.” J Natl Cancer Inst, Sept. 20, 2000, 92(18)1472-1489.

Switch from soy milk to almond milk, avoid tofu, and eat cleaner food!! By the way, organic, non-GMO miso, tempeh and natto are acceptable soy foods, since they are fermented.

Have a great start to your week! I’ll be back in NY this week and will write more.

Lots of love,



New York Times Bestseller and Nutritionist