Articles by Dr Stacy Sims

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Tags: intermittent fasting

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Why Fasting Doesn’t Work for Active Women

Of all the topics I cover, fasting is easily one of the most polarizing. But it’s also one I feel strongly about—because the science is clear, and I want to help women avoid its many pitfalls. While some women do say they feel good when fasting, the long-term research tells a different story....

by Dr. Stacy Sims — Jun 25, 2025 carbohydrate cortisol hormones intermittent fasting

Yes! You are an athlete. No! You shouldn’t practice Intermittent Fasting.

I sat down with 8x U.S. Champion Steeplechase runner and Olympic bronze medalist Emma Coburn for Episode 5 of Nuuness TV, a Nuun-sponsored YouTube series devoted to women in sports. It didn’t take long before the topic turned to my scientific impressions of current diet trends. Of course, I jump...

by Dr Stacy Sims — Oct 10, 2024 intermittent fasting keto

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Tags: intermittent fasting

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