Thyroid UK
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Soya protein food?

Hello everyone. I have an underactive thyroid. Been doing some research to improve my health. Ive read any soya protein food ie Cauldron sausages, Quorn burgers etc is not good for those who have underactive thyroids. Is this true? Can someone shed some light on this. I eat a lot of Cauldron sausages (meat substitute) food as my hubby is vegetarian. Thanks. Sim.

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Sim2

I expect you will find lots of conflicting information about this and may even get conflicting views from members.

According to ncbi.nlm.nih.gov/pubmed/165...

One concern is that soy may adversely affect thyroid function and interfere with the absorption of synthetic thyroid hormone

and verywellhealth.com/soy-and-...

there are long-standing concerns that soy may have negative effects on thyroid function and hormonal health.

My preference is to not eat soy.

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Thank you for your reply.

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Many of us avoid soya and soya lecithin completely

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I have read that soy is also bad for the thyroid but then I have read it is helpful for the menopause and high in protein . I avoid it after all it was produced to be a cheap food filler and is still used for this purpose. I read the Whole Soy Story , really put me off.

Its kinder not to eat meat and there are alternatives to soy sausage that are vegetarian

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I was tofu mad Almost like I was addicted to it.. However I found endame beans made me feel really quite unwell, then a lot of soy is genetically modified which really is not my thing at all. It is squirrelled away in sorts of products. I read negative things about it here and decided to avoid it. I fear some goes Down the hatch via chocolate - fruit and nut is free of it....I do feel better for avoiding it. I’d just try not eating it and see if you notice any difference, and take it from there

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Soy protein is best avoided as it is oestrogenic and that's why it interferes with thyroid function. It also increases cancer risk for the same reason. It can exacerbate problems with those who are oestrogen dominant and actually make menopausal symptoms worse, unless you have evidence that low oestrogen is a problem. Best avoided in my opinion.

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I wouldn't eat any fake food (soya "meat" is very highly processed). If you want to eat soya, I'd eat the beans cooked as beans, or natto, or tempeh (both fermented). Possibly tofu - although even the Chinese don't eat much tofu. Soy is a goitrogen, so it can make you more hypo. You can get plenty of protein from dairy, if not intolerant, nuts and seeds and beans/legumes. Nutritional yeast contains a surprising amount of protein. Quorn is probably OK, although there have been some adverse reports (nothing to do with thyroid). Surely the point of being veggie is not to eat meat, fake or otherwise? If you aren't veggie, why not just grill a nice piece of liver for yourself and get some extra iron and B12 as well.

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