Do GMO Soy Products Affect Immunity? Nutritionist Insights - Nutrition

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Eating genetically modified foods..?


Hello Nutritionist: I really love soy products.
Recently, I've heard that they contain many genetically modified ingredients that could cause immune issues.
Is this correct? Thank you! Little Mi

Xiao Mi, 20~29 year old female. Ask Date: 2005/04/12

Dr. Shi Guimei reply Nutrition


Hello! Currently, there are no research reports indicating that genetically modified foods cause immune issues.
I recommend visiting the following websites, which provide a wealth of Q&A information regarding genetically modified foods: Department of Health Food Information Network / Frequently Asked Questions / Genetically Modified Organisms Project.
Sincerely, Dietitian Shih Kuei-Mei, Director of the Nutrition Department, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2005/04/12

More Info


Dear 小mi,
Thank you for your question regarding the potential effects of genetically modified organism (GMO) soy products on immunity. This is a topic that has garnered significant attention and debate in both scientific and public circles. Let’s delve into the details.

First, it’s essential to understand what GMO soy products are. These are soybeans that have been genetically engineered to exhibit certain desirable traits, such as resistance to pests or herbicides, improved nutritional profiles, or enhanced growth rates. The most common GMO soybeans are designed to be resistant to glyphosate, a widely used herbicide.

Regarding your concern about immunity, the current scientific consensus is that GMO foods, including soy products, do not inherently cause immune problems in the general population. Numerous studies have been conducted to assess the safety of GMO foods, and regulatory bodies such as the U.S. Food and Drug Administration (FDA), the European Food Safety Authority (EFSA), and the World Health Organization (WHO) have concluded that GMO foods are safe to eat and do not pose a greater risk to health than their non-GMO counterparts.

However, some individuals may have specific sensitivities or allergies to certain proteins found in soy, whether it is GMO or non-GMO. For instance, soy is a common allergen, and those with soy allergies may experience immune responses when consuming soy products. This reaction is not due to the genetic modification itself but rather to the proteins present in soy.

Moreover, some studies have suggested that the consumption of GMO foods could potentially influence gut microbiota, which plays a crucial role in immune function. A healthy gut microbiome is essential for a robust immune system, as it helps regulate immune responses and protects against pathogens. However, the evidence is still inconclusive, and more research is needed to fully understand the long-term effects of GMO foods on gut health and immunity.

In terms of nutrition, soy products are generally considered to be healthy. They are rich in protein, fiber, vitamins, and minerals, and they contain isoflavones, which are phytoestrogens that may offer various health benefits, including potential anti-inflammatory effects. Incorporating soy products into your diet can be beneficial, especially if you are looking for plant-based protein sources.

If you are concerned about the potential effects of GMO soy products on your health, you might consider opting for organic or non-GMO certified soy products. These products are grown without genetic modification and may provide peace of mind for those wary of GMOs.

In conclusion, while there are ongoing discussions about the long-term effects of GMO foods on health, current evidence does not support the notion that GMO soy products negatively impact immunity in the general population. As with any dietary choice, moderation and variety are key. If you have specific health concerns or conditions, it is always best to consult with a healthcare professional or a registered dietitian for personalized advice.

Wishing you good health and well-being!
Best regards,
Doctor Q&A Teams

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