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71 / How Soy Can Be Causing You More Harm Than Good w/ Dr. Kaayla Daniel

Muscle Medicine Podcast 071 / How Soy Can Be Causing You More Harm Than Good w/ Dr. Kaayla Daniel

Soy is a popular protein source in the fitness world and in food in general. There are countless different soy-based products out there claiming that soy is a miracle food. However, there is also a lot of evidence that soy can lead to a whole host of medical problems. Perhaps, few people understand this better than today’s guest.

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Dr. Kaayla Daniel, aka the Naughty Nutritionist, is an author and a nutritionist who earned her Ph.D. in Nutritional Sciences and Anti-Aging Therapies from the Union Institute and University in Cincinnati. Her mission is to debunk myths surrounding much of what we commonly think is good for our health using humor and a down-to-earth approach.

Today, Dr. Kaayla Daniel and I discuss some of the lesser-known effects of soy. She explains the history of how soy has been marketed over the years and how this has led to its profusion in so-called health foods. However, we are becoming increasingly aware that eating too much processed soy can lead to many issues, from auto-immune disease to heart problems. To that end, Dr. Daniel tells us how to determine if we have a soy sensitivity and how to avoid it.

Have you cut soy out of your diet? What challenges has that created and how has it helped? Let’s talk about it in the comments below!

In this episode

  • The history of research into soy’s actual nutritional effects
  • The links between soy and certain auto-immune diseases
  • How soy can be enjoyed when consumed in moderation
  • The challenges of avoiding soy for those with allergies and sensitivities
  • The effects of heavy soy consumption on thyroid and gut health
  • Why consuming a lot of soy during menopause can lead to particular health problems
  • Ways to determine if you have a sensitivity to soy


“The problem is when people have a whole slab of soy instead of steak. That starts to add up very quickly if you’re doing that every day.” [13:49]

“With humans, there are so many factors. It’s never just one miracle food, a few miracle foods, or for that matter, a few devils like soy.” [18:22]

“Soy is in more than 60% of processed and packaged food. It’s in nearly 100% of fast foods. It’s hiding in a whole lot of restaurant foods where you might not even suspect it.” [19:13]

“With soy, certainly avoid it to excess, avoid the modern processed soy foods, like protein shakes, the energy bars, and soy milk.” [34:57]


Find Dr. Kaayla Daniel online

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