Sustainable weight loss depends on calorie balance, protein intake, and behavioral consistency — not fad diets. Here is what the evidence supports for long-term results.

A pre-workout meal timed 2-3 hours before training with carbs and moderate protein improves performance — here is what the evidence supports.

Creatine loading and daily low-dose supplementation both fully saturate muscle stores — the only real difference is how fast you get there.

The Nordic hamstring curl is the most studied eccentric exercise for reducing hamstring strain injuries in sprinting sports.

Post-workout glycogen resynthesis depends more on total daily carbohydrate than a strict 30-minute window — here's what the dosing evidence actually shows.

Sauna after training may aid recovery and heat adaptation, but a 2025 RCT found no HRV benefit. Here's the balanced evidence.

Sweat sodium loss varies nearly tenfold between athletes, and wearable sensors now make individualized hydration plans possible.

A meta-analysis finds HIIT and steady-state cardio produce similar fat loss, but HIIT edges ahead on cardiorespiratory fitness gains.

Vitamin D3 mainly boosts strength and power in athletes who start out deficient, not those already vitamin D-replete.

The ISSN position stand outlines evidence-based caffeine doses and timing for endurance, strength and power performance.

Casein before bed boosts overnight muscle protein synthesis, but new research shows it may not translate into next-day strength gains for trained lifters.

A 2025 meta-analysis of 35 RCTs shows intermittent fasting preserves strength and VO2max, but may reduce lean mass - key takeaways for athletes.

A 2026 JSCR meta-analysis finds BFR adds no extra benefit atop heavy lifting, but at 20-30% 1RM it rivals heavy training for strength gains.

A new 2026 randomized trial finds a single high dose of creatine improves cognitive performance by ~12% during 21 hours of sleep deprivation.

A meta-analysis of 17 RCTs shows resistance training significantly improves bone density at the spine, femoral neck, and hip in older adults.

An umbrella review of 69 RCTs finds probiotics may modestly lower inflammation and boost mucosal immunity in athletes, but evidence on GI distress and performance stays thin.

New research shows 70-85% low-intensity plus 15-26% high-intensity training may best boost VO2max in endurance athletes.

A 2025 meta-analysis shows plyometric jump training boosts jump height, sprint speed, and agility, most reliably with 2 sessions/week for 9+ weeks.

Iron deficiency affects a large share of female athletes due to menstrual losses, footstrike hemolysis, and low energy availability. Learn how ferritin screening works and how to manage iron status through diet and evidence-based supplementation.

New 2026 research and a landmark JISSN trial show 300-600mg/day of standardized ashwagandha extract may stabilize cortisol, speed recovery, and support strength gains in athletes — here's what the evidence actually shows, including dosing and safety caveats.

Ice baths can ease soreness and speed perceived recovery after hard training, but timing matters: used right after resistance training, cold water immersion may blunt muscle and strength gains. Here's what the latest meta-analyses say.

Hydrolyzed collagen (~15 g) plus vitamin C, taken 30-60 min before training, may modestly boost tendon stiffness and remodeling when paired with loading exercise, per a 2026 systematic review.

A 2025 Sports Medicine review re-examines the evidence behind Zone 2 and its role in building an endurance aerobic base.

Magnesium supports muscle and energy, but evidence on cramps and performance is mixed. Recommended dose: 300-400mg/day.

4-6g/day beta-alanine for 2-4+ weeks boosts muscle carnosine and buffers acidosis in 1-4 minute high-intensity efforts.

A 2026 meta-analysis of 41 trials finds 2g/day EPA+DHA for 6+ weeks lowers post-exercise inflammation and soreness.

The official 2026 ISSN Position Stand on antioxidant supplementation and athletic performance.

Vitamin D supports bone, muscle, and immune health for athletes — an evidence-based overview from Examine.com, with guidance on testing before supplementing.

Curcumin has anti-inflammatory properties and may ease osteoarthritis pain — a look at the evidence from 147 references and 117,479 participants on Examine.com.

L-Carnitine is marketed as a fat burner, but 101 trials and 18 meta-analyses show far more modest effects than the ads suggest.

ACSM's first resistance training update in 17 years: 137 reviews, 30,000+ people show starting matters most, and you don't need a gym.

How much sleep athletes need, why sleep extension helps, naps, and simple sleep-hygiene basics.

ACSM fluid guidelines: how much to drink before, during and after exercise, plus sodium targets.

The ISSN protein position stand: daily targets, per-meal doses, timing and quality for building muscle.

The ISSN position stand on caffeine: effective doses, timing, what it improves, and how to use it safely.

Learn about GLP-1 weight loss drugs (semaglutide, tirzepatide): how they work, the new pill form, real-world effectiveness vs. clinical trials, side effects, and cost considerations.

Learn what the 'gout diet' really means according to Harvard Health — it's not about strict restrictions but heart-healthy eating patterns like the Mediterranean and DASH diets.

Learn how to recognize and prevent common summer sports injuries — from heat illness and sprains to overuse injuries in young athletes — with expert advice from Mayo Clinic.

Mayo Clinic shares key prevention tips for summer sports injuries — from heat illness to sprains and overuse injuries in young athletes.

The right exercise combining balance, strength, and resistance training can reduce osteoporosis fracture risk by over 60%, according to Harvard Health.

Does creatine timing matter? An evidence-based look at when to take creatine, dosing, and why total daily intake beats precise timing.