2. Is Soy Good for you (Part 1)

Soy has an effect on the hormones in your body. What is the effect? In fact, soy contains phytoestrogens. “Phyto” means plant-based. Hence, soy contains plant-based estrogens. There are basically three types of estrogens in the body. These types are estriol, estrone, and estradiol. Estriol stimulates the beta receptors by binding to them. It blocks the alpha receptor – which represents the negative effects of estrone and estradiol. When estriol binds to the beta receptor, it can shrink tumors.

It acts similar to the drug tamoxifen – which is another blocking agent. But estriol has no side effects like uterine cancer – which is a side effect of tamoxifen. Soy acts the same way as estriol. In fact, soy binds to the beta receptor and blocks the alpha receptor. This is a huge plus point for our health and well being.

Soy Protein Isolate Defined
A dietary protein isolated from soybeans that contain isoflavone phytoestrogens. Soy protein isolate has been shown to reduce tumor incidence and growth in some animal studies, possibly by modulating estrogen metabolism, reducing tumor cell proliferation, and inducing tumor cell apoptosis. Soy protein isolate may also inhibit endothelial cell proliferation. Isoflavone phytoestrogens display mild estrogen-like activities which may regulate hormone balance and reduce the risks of breast cancer, heart disease, and osteoporosis.

Effects of soybean peptide on immune function, brain function, and neurochemistry in healthy volunteers.



Soybeans, an excellent source of dietary peptides, have beneficial effects on health. We investigated the effect of the soybean peptide on immune function, brain function, and neurochemistry in healthy volunteers.


Near-infrared spectroscopy (NIRS) was used to analyze brain cerebral blood flow. The A and DA levels in the serum were analyzed by ELISA kit. The total number of leukocytes was recorded with a standard counter. Flow cytometry was used to assess lymphocyte subset levels.


Cell numbers were upregulated in the group that had fewer leukocytes but downregulated in the group with more leukocytes. For the lymphocyte-rich type, lymphocyte counts tended to decrease, accompanied by an increase in granulocyte numbers. For the granulocyte-rich type, granulocyte counts tended to increase, but lymphocyte counts also increased. The numbers of CD11b(+) cells and CD56(+) cells increased significantly. Soybean peptide decreased the adrenalin level in plasma but increased the level of dopamine. Near-infrared spectroscopy showed significant increases in the amplitudes of θ, α-2, and β-L frequency bands after the ingestion of peptides.


Soybean peptides can modulate cellular immune systems, regulate neurotransmitters, and boost brain function.

Soy protein shows brain boosting benefits: Human data
Peptides from soybeans may influence the immune system and hormones linked to emotion and ultimately boost brain function, according to a new Sino-Japanese study.