Sports Nutrition Guides
Nutrition guides, supplement reviews, and meal prep recipes for athletes. Science-backed advice for better performance and faster recovery.
Latest articles (401)
Carb Timing: The Strategy That Shifts Everything in Fall Training
As fall training intensity climbs, carb timing becomes the factor that separates athletes who adapt from those who stall. Here's how to get it right.
Triathlon Nutrition: The Practical Plan for Everyday Athletes
Isostar's 2026 novice program calls nutrition the fourth discipline. Here's a complete, periodized fueling plan for amateur triathletes training 10–12 hours a week.
Teen Athletes Are Eating Worse Than Anyone Thinks
A 2026 study of adolescent athletes reveals dangerous gaps in nutrition knowledge and fueling that vary by sport and threaten long-term development.
Lifting and Eating More After 50: The Combo That Changes Everything
Post-menopausal women who lift and eat more protein see better body composition results than those who restrict. Here's the evidence and a practical daily nutrition framework.
Precision Nutrition in 2026: Does Eating for Your Profile Work?
Precision nutrition in 2026 goes far beyond DNA. Here's what CGM data, microbiome research, and sleep tracking can actually tell everyday athletes about how to eat.
8 in 10 Adults Take Supplements: What Science Actually Says
A new Pew survey shows 80% of U.S. adults take supplements regularly. Here's which categories the science actually supports and which aren't worth your money.
Precision Nutrition: Does Eating for Your DNA Actually Work?
Precision nutrition promises DNA- and microbiome-based diets tailored to you. Here's what the current science actually supports for active people.
Nutrition as the 4th Triathlon Discipline: A Real Framework
Isostar's 2026 triathlon nutrition program frames fueling as a structured 4th discipline. Here's the framework any endurance athlete can apply.
Non-Nutritive Sweeteners: Do They Actually Help Cut Sugar?
A September 2026 study finds non-nutritive sweeteners reduce sugar intake without harming weight or health markers, offering new clarity for active people.
Healthy Fats and Prostate Cancer Survival: The Harvard Data
Harvard research shows swapping saturated fats for unsaturated, plant-based fats significantly lowers death risk in men with nonmetastatic prostate cancer.
Sports Supplements' Hidden Quality Crisis in 2026
Third-party testing keeps exposing the gap between supplement labels and reality. Here's what athletes need to verify before buying in 2026.
Iron Deficiency in Endurance Athletes: The Signal You're Missing
Iron deficiency without anemia silently undermines endurance performance. Here's how to identify it, correct it, and stop training against your own biology.
Time-Restricted Eating and Your Brain: New Evidence
A new pilot trial found time-restricted eating improved cognition in older women beyond calorie restriction alone, adding weight to the meal timing and brain health conversation.
Probiotic Pills Are Surging While Real Food Falls Behind
Probiotic supplement sales are surging, but fiber and fermented food intake remains flat. Here's what that gap actually costs your gut health.
Multivitamins: What a Long-Term Study Finally Shows
A major long-term Mass General Brigham trial survived COVID-19 disruptions to deliver unusually credible findings on daily multivitamin use in average adults.
Fall Meal Prep: Eating for the Training Ramp-Up
Fall training volume demands a smarter eating strategy, not just more food. Here's how to align meal prep with escalating energy and recovery needs.
Does Tyrosine Shorten Men's Lifespan?
A 270,000-person study links higher blood tyrosine to shorter lifespan in men. Here's what the data actually shows and what it means for your supplement stack.
Only 3 Supplements Actually Work for Depression
A major meta-analysis found only 3 supplements show effects on depression, but researchers flagged the results as suspiciously inflated. Here's what that means for your wallet.
Quercetin's Bioavailability Problem: Is It Finally Solved?
Quercetin's poor absorption has long limited its value as a supplement. New nanoparticle research may finally change that, but here's what to use now.
Peptide Technology in Pre-Workouts: Real Edge or Marketing Buzz?
Peptide technology is a real science, but most pre-workouts using the term deliver marginal benefits. Here's how to separate evidence from marketing.
Mushroom Supplements: What the Science Actually Says
Mushroom compounds show real promise in lab research, but human evidence is still limited. Here's what the science supports and what to demand before you buy.
Men's Vitality Supplements: An Honest Ingredient Reality Check
The men's vitality supplement market is packed with bold claims. Here's what the actual clinical research says about Tongkat Ali, Ashwagandha, and more.
Fall Race Hydration: The Strategy Most Runners Miss
Fall temperatures mask heavy sweat losses, leading runners to under-hydrate when it matters most. Here's a science-backed hydration plan for fall racing.
How to Read a Probiotic Label Without Getting Played
CFU counts alone don't tell you whether a probiotic works. Here's the full framework for reading labels with strain specificity, survivability, and postbiotics in mind.