The Cautionary Tale of Soy: What Individuals with Cystic Fibrosis Should Know
- CFAA
- Jul 10
- 3 min read
Updated: Jul 30
Understanding Soy and Its Impact on Health
Soy and soybean foods are very popular in today’s diet. However, if you are living with cystic fibrosis, it may be wise to use caution when consuming these products. Over the last 50 years, soybeans have been selectively bred to enhance certain characteristics that are considered valuable. One significant change has been the increase in the plant's level of a naturally occurring fungicide known as phenyl isothiocyanate (PIT).
While heirloom varieties of soy may contain only 1-2 parts per million of PIT, modern strains can contain an alarming 2000-2500 parts per million. This increase is crucial for those of us who have cystic fibrosis.
The Role of Glutathione in Cystic Fibrosis
As many of us know, the glutathione system in individuals with cystic fibrosis is dysfunctional. For more information on this topic, you can check the glutathione section on the Utah Valley Institute of Cystic Fibrosis website.
Selenium plays a vital role in this system, particularly in the formation of glutathione peroxidase. This enzyme helps convert glutathione (GSH) to its oxidized form (GSSG) in the presence of water-soluble oxidants. Without sufficient selenium, we cannot produce adequate amounts of glutathione peroxidase. Consequently, glutathione cannot function effectively in its role as an antioxidant.
The Dangers of PIT
PIT has a unique ability to displace selenium in the body, effectively depleting our selenium levels. This phenomenon was first observed in the dairy industry. When calves were separated from their mothers too early and fed soy replacer formulas, about one-third of them suffered from severe digestive issues, known as scours or dysentery. It was later discovered that PIT was the culprit behind this problem.
By displacing selenium, PIT compromised the integrity of the calves' intestinal membranes. It also interfered with digestive enzymes, particularly proteases, which are essential for breaking down proteins. Interestingly, cows possess the same digestive enzymes as humans.
Implications for Individuals with Cystic Fibrosis
Given that individuals with cystic fibrosis already face challenges with their glutathione system, digestive enzymes, and gut inflammation, it may be prudent to exercise caution when consuming modern soybean products. The elevated levels of PIT in these products could potentially exacerbate existing conditions.
Exploring Alternatives to Soy
If you are concerned about the impact of soy on your health, consider exploring alternative sources of protein and nutrition. There are many options available that can provide the necessary nutrients without the risks associated with high levels of PIT.
Nutritional Alternatives
Legumes: Beans, lentils, and chickpeas are excellent sources of protein and fiber. They can be used in a variety of dishes, from soups to salads.
Quinoa: This grain-like seed is not only high in protein but also gluten-free. It can be a great base for salads or a side dish.
Nuts and Seeds: Almonds, walnuts, chia seeds, and flaxseeds are packed with healthy fats and protein. They can be added to smoothies, yogurt, or eaten as snacks.
Animal Proteins: If you consume animal products, lean meats, fish, and eggs can provide high-quality protein without the concerns associated with soy.
Dairy Alternatives: If you are looking for dairy substitutes, consider almond milk, coconut yogurt, or oat milk. These can be used in place of soy milk in recipes.
Listening to Your Body
It’s essential to listen to your body and understand how different foods affect your health. Keeping a food diary can help you track your responses to various foods, including soy. If you notice any adverse effects, it may be a sign to reduce or eliminate those foods from your diet.
Seeking Professional Guidance
If you are unsure about your dietary choices, consider consulting with a healthcare professional or a registered dietitian. They can provide personalized advice tailored to your specific needs and health conditions.
Conclusion
In conclusion, while soy and soybean products are prevalent in many diets, individuals with cystic fibrosis should approach them with caution. The high levels of PIT in modern soy products can pose risks to our already compromised systems. By exploring alternative sources of nutrition and listening to our bodies, we can make informed choices that support our health and well-being.
Shared from Utah Valley Institute of Cystic Fibrosis
Comments