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Sigma Nutrition Radio

#430: Soy - Yes, No, Maybe?

Sigma Nutrition Radio

Danny Lennon

Sigma, Dietetics, Evidencebased, Nutrition, Training, Health & Fitness, Science, Diet, Fitness, Evidence, Bodybuilding, Health

4.8626 Ratings

🗓️ 14 March 2022

⏱️ 80 minutes

🧾️ Download transcript

Summary

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The popularity of soy foods and soy-based products has been increasing in recent times. This has been particularly the case as a dairy alternative, with people switching to using soy ‘milk’ and soy-based yogurts and cheese. Additionally, soy has become popular as a meat alternative in a variety of dishes for those looking to reduce meat intake. Soy foods such as tofu can be used in recipes in place of meat, and soy-based ‘meat alternatives’ that are vegetarian and vegan friendly have been developed.

With this increased prevalence, there has been some debate about the health effects of consuming soy foods and products. On one side, there have potential benefits highlighted of inclusion of soy in the diet. It contains phytoestrogens, which may have beneficial effects. Additionally, it is low in saturated fat, and so is potentially beneficial when used in place of saturated fat-rich foods.

However, some have claimed that the phytoestrogens (isoflavones specifically) in soy can be a cause for concern due to the ability of these compounds to mimic the effects of the hormone oestrogen. One common claim is that high soy intake is detrimental for men particularly, as it is “feminizing”; causing gynecomastia, loss of libido and erectile dysfunction.

So what is the truth? Is soy a health food? A harmful endocrine disruptor? Or simply neutral? In this episode we dive into the research and look at the evidence to date tells us about these questions. We consider two big health outcomes in particular; cardiovascular disease and breast cancer. And then final discuss what this means practically for our dietary choices.

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Transcript

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0:00.0

Welcome to another episode of Sigma Nutrition Radio. I am Danny Lenin. And if you're hearing this

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description box for this episode, or simply go to sigmanutrition.com slash premium. And without further

1:25.0

ado, let's get into our episode.

1:31.7

Hello, you are listening to Sigma Nutrition Radio.

1:34.8

This is episode 430 of the podcast.

1:38.9

My name is Danny Lennon.

1:40.0

I'm here with Alan Flanagan, and today we're going to be talking about soy.

1:46.0

Are you excited for our discussion, Alan? I am.

1:48.0

It's a topic dear to my heart.

1:50.0

I'm always, you know, interested whenever a food or food group becomes part of the culture wars, you know, it's really just, it's really bringing

...

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