Bill Willis | Decoding the Evidence and Efficacy of Greens Powders

Of all the supplements on the market, the rising popularity of greens powders is impossible to ignore. Many of these products claim to be the equivalent, or even superior than, fruits and vegetables. But what do we really know about these products? Is there any evidence to back up their claims? Luckily, Bill Willis, a researcher at both Ohio State University and Examine.com, joins the show to help answer these questions.

We explore the bioavailability of green powders and the potential impact of processing on their nutrient content. Bill then dives into the research on greens products and discusses the complexities of evaluation, addressing concerns about their efficacy. We also highlight labeling issues and the potential shortcomings of common ingredients.

Lastly, we unpack the regulations surrounding supplement marketing and share personal experiences with greens products. Through that discussion, we offer tips on what to consider when selecting a greens product and the importance of being a savvy consumer.

Time Stamps:

[3:38] Bill's experience training with the late John Meadows in blending the art & science of training

[10:04] Comparing and contrasting greens powders and multivitamins

[12:20] The impact of manufacturing and process on the nutritional value of greens powders

[16:45] How efficacy is measured and determined with greens products

[24:16] Are greens powders really equivalent to servings of whole fruits and vegetables?

[26:14] Issues with greens product formulation and reading labels

[35:09] What peer-reviewed research do we have on greens powders?

[38:16] Tips on evaluating greens products

[43:11] Take home considerations for greens powders

Dr. Bill Willis is currently a research scientist at Ohio State University and boasts a unique journey that combines the world of academia and fitness. His current research focuses on studying autoimmunity, but his drive to understand how to optimize human performance, specifically through nutrition and supplements, has kept him rooted in the fitness field. Apart from his lab research, Bill is a researcher for Examine.com, providing his insights and uncovering the literature on dietary supplements. His unique perspective, stemming from being in the research trenches of biomedical science and maintaining an active role in the fitness industry, provides an invaluable intersection of fitness and science.

You can learn more about Bill and read his articles on Examine.com.

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