7 Serious Side Effects Of Soy

Serious Side Effects Of Soy

Soy is considered as the best vegan protein source. Its nutritional value and its easy availability in every venue make us consider soy as a high quality protein food. However, there are some unknown controversial facts about soy. Yes, it can cause serious side effects. Read on to know about the adverse effects of soy.

These Are Side Effects of Soy

Digestion Problems

Soy might slow down digestion because it contains a compound that hampers protein digestion. The compound interferes with the production of enzymes essential for protein digestion and it might result in constipation. It also leads to excess mucous secretion in the GI tract and might result in stomach pain and even diarrhea.


Kidney Problems

Soy contains high amounts of oxalates. Oxalate might trigger the development of kidney stones. When we consume oxalate rich foods and the body is unable to process them properly, it forms calcium oxalate. When calcium oxalate is accumulated in the kidney, it results in kidney stones.

kidney stones

Hormonal Problems

Soy is loaded with isoflavones, which might disrupt the normal functioning of the endocrine glands. The compounds such as glycitein, genistein and daidzein mimic estrogen and modify its activity. They either increase or decrease the estrogen levels in the body by interfering with the estrogen receptor. Thus, excess consumption of soy might result in hormonal imbalance.

Hormonal Imbalances

Causes Cancer

As mentioned above, soy isoflavones might alter the hormonal balance and result in the development of breast cancer. Consuming soy over an extended period of time would lead to the development of endometrial cancer. It can trigger the proliferation uterine tissue and forms the basis of endometrial cancer.

Reduces Chances Of Skin Cancer


Soy can also cause severe allergic reactions, which can at times be fatal. It is a common food allergen. Allergic symptoms might be the development of rashes, hives, wheezing, vomiting, itching, etc. Sometimes, it might also cause asthma. Immediate medical attention is required in some cases.

Allergic Reactions

Iodine Deficiency

The phytochemicals found in soy interferes with the iodine absorption in the body and results in iodine deficiency. Iodine is an important element for the proper functioning of the thyroid glands. Hence, soy can result in autoimmune disease or hypothyroidism.

Regulates The Performance Of  Thyroid Gland

Affects Reproductive Health

Soy contains compounds that can duplicate estrogen. This might lead to elevated or reduced estrogen levels and affect the normal menstrual cycle. It can result in delayed periods or menorrhagia. This would affect ovulation and might result in the development of endometriosis.

Low Libido In Women