Jim Stoppani, PhD
Jim Stoppani, PhD, is one of the world's most recognized and popular authorities on training, nutrition and dietary supplements. He was the Senior Science Editor for Muscle & Fitness, Flex, and Muscle & Fitness HERS magazines for over 10 years and has trained some of the top celebrities in the world, including Dr. Dre, LL Cool J and Mario Lopez. Stoppani runs his own membership-based website JimStoppani.com, which features all of his exclusive training and diet programs, videos and articles, and he's the owner and creator of the ground-breaking JYM Supplement Science line of sports nutrition products. As a published author, his book credits include the New York Times Bestseller LL Cool J's Platinum 360 Diet and Lifestyle and the acclaimed educational text Encyclopedia of Muscle & Strength.
Jim Stoppani, PhD
⏱️ What if you could get the same muscle and strength gains in almost half the time?
New research just confirmed it—and it involves supersets.
I break down a 2025 meta-analysis of 19 studies showing how supersets stack up against straight sets.
Do you train with supersets—or avoid them? 👇
11 minutes ago | [YT] | 1
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Jim Stoppani, PhD
Do elbow sleeves actually help you lift more?
A 2025 study says yes.
More weight. More reps. Less elbow stress.
Watch the full video and see what the science says.
1 week ago | [YT] | 7
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Jim Stoppani, PhD
Most people take L-Carnitine for fat loss—but don’t know why it works.
2 weeks ago | [YT] | 3
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Jim Stoppani, PhD
I get a lot of questions about CLA. 🧐
In this video, I break down how CLA really works, who should take it, and why results take time. If you want to get leaner, stronger, and smarter with your body composition, this is for you.
2 weeks ago | [YT] | 4
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Jim Stoppani, PhD
🚨 “Lead in your protein powder?!” — yeah, that headline got people freaked out.
Consumer Reports pushed fear, not facts. I break down exactly where the lead really comes from (hint: the soil your food grows in) and why your protein powder is just as safe as the fruits and veggies in your fridge. 🧠💪
Don’t let clickbait scare you out of good nutrition — watch my full breakdown here 👇
Tag your buddy who almost threw out their protein tub 😂
2 months ago | [YT] | 15
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Jim Stoppani, PhD
🔥 Chest, Back, and Abs — HIIT 100 Style 🔥
2 months ago | [YT] | 5
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Jim Stoppani, PhD
🔥 Week 5 of the HIIT 100 Program — shoulders and arms got wrecked!
You gotta see PK fight through those 10x10s 👇
Jump into Dr. Jim Stoppani’s 6-week HIIT 100 program and fast-track your fat loss
► www.jimstoppani.com/f/hiit100/
2 months ago | [YT] | 2
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Jim Stoppani, PhD
💪 Leg Day HIIT 100 is!
100 reps. Legs. Triceps. Mental grit. Push past your limits and finish strong. 🔥
2 months ago | [YT] | 6
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Jim Stoppani, PhD
🎧 Watch now: Does Explicit Music Make You Stronger?
Then tell me — what’s your go-to PR song? 💪
2 months ago | [YT] | 2
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Jim Stoppani, PhD
Think you can handle German Volume Training?
► Get the HIIT 100 Training Program: www.jimstoppani.com/training/hiit-100-program-over…
3 months ago | [YT] | 4
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