Articles by Dr Stacy Sims

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Where Do I Start? A Roadmap for Active Women Who Want to Get It Right

If there's one question I hear more than any other right now from active women, it's this: where do I even begin? There’s no doubt you're motivated and you’re asking all the right questions: you know that training, nutrition, sleep, and stress all matter, but the sheer volume of information out...

by Dr. Stacy Sims — May 29, 2026 adaptogens creatine fueling hiit lift heavy nutrition protein sleep strength supplements

Why Jet Lag Hits Women Harder

I landed back in New Zealand last week after a month in the US and it’s wonderful to be home, to be back with my family, and to be catching up on sleep. Well, almost. While my body is physically here, my body clock is still somewhere over the Pacific. Jet lag is one of those things that sneaks ...

by Dr. Stacy Sims — May 18, 2026 circadian rhythms hiit hormones hydration jetlag protein sleep supplements

Menopause Changes Your Gut—Here’s Why It Matters

Most conversations about menopause focus on hormones. But there’s another system quietly shifting at the same time: your gut microbiome. The trillions of bacteria living in your gut influence everything from metabolism to immune function to brain health. And during perimenopause and menopause, ...

by Dr. Stacy Sims — Mar 12, 2026 gut intensity menopause microbiome nutrition perimenopause supplements

Why Active Women Need Creatine

There are very few supplements I recommend across the board. Creatine is one of them. For decades, creatine has been misunderstood as something only bodybuilders or elite male athletes use. That misconception has kept many women from one of the most well-researched, effective, and female-rele...

by Dr. Stacy Sims — Feb 11, 2026 creatine hiit intensity menopause muscle perimenopause roar supplements

Your Most-Loved Content of 2025

My mission is simple: inform and inspire women—and the people who support them—with science that actually matters. As we wrap up 2025, I’m highlighting the content you engaged with most: the articles, podcasts, videos, and posts that sparked curiosity and kicked off important conversations. You...

by Dr. Stacy Sims — Dec 10, 2025 bones hiit longevity protein recipes supplements

Why HIIT Matters for Women’s Body and Brain Health

If you’ve been following me for a while, you know I love busting myths—especially in women’s training. One of the most persistent? “More long, steady cardio is always better.” Don’t get me wrong—Zone 2 training has its place. It builds your aerobic base, supports mitochondrial health, and imp...

by Dr. Stacy Sims — Aug 20, 2025 cortisol creatine hiit intensity longevity recipes supplements

Longevity Advice Women Actually Need

If you’re tuned into the health and fitness world (which I’m assuming you are if you’re here!) then I’m sure you’ve heard plenty of influencers and experts talking about “longevity” and the importance of living better for longer. Yet as with so many things, I’m acutely aware that much of the ...

by Dr. Stacy Sims — Aug 06, 2025 cold collagen hydration lift heavy longevity supplements

Clear Mission, Shared Vision

After four whirlwind weeks on the road in the U.S., I’m finally back home with my family, enjoying some much-needed downtime. One of the most challenging aspects of the work I do is being away from home—but it’s also one of my greatest motivators. As the mother of a soon-to-be teenager, I’m m...

by Dr. Stacy Sims — Jun 11, 2025 recipes supplements

Empowering Female Athletes: Part 2

Digging into the rest of the International Society of Sports Nutrition Female Athlete Position Stand. Here’s what you need to know. In the last blog, I discussed the first part of the International Society of Sport Nutrition (ISSN) Position Stand for the Female Athlete. In case you missed it, we...

by Dr Stacy Sims — Oct 14, 2024 anemia fueling hydration lea supplements

Empowering Female Athletes: Part 1

A Review of the International Society of Sports Nutrition Female Athlete Position Stand I am just back from a whirlwind trip in the US, and one of the stops was to present the new Female Athlete Position Stand at the International Society of Sport Nutrition’s (ISSN) annual conference. The ISSN h...

by Dr Stacy Sims — Oct 14, 2024 anemia creatine fueling hydration lea supplements

Creatine FAQs for Active Women

NOTE: These recommendations are for active women with no relevant medical conditions. This FAQ article answers the most common questions I get from women about creatine. If you want the full science-backed guide on how creatine supports muscle, brain, and bone health across the female lifespan,...

by Dr Stacy Sims — Oct 14, 2024 creatine menopause muscle perimenopause strength supplements

Should Women Take Collagen Supplements?

Collagen is the current darling of the wellness industry. It can benefit a lot of women, but not all supplements work the same. More women (and men for that matter) are interested in collagen supplements than ever before. Weightlifters believe they can enhance muscle mass. Athletes want them to ...

by Dr Stacy Sims — Oct 13, 2024 collagen nutrition supplements

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