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Wellness Digest turns the latest sports-science and nutrition research into clear, practical guides in English, French, German, Spanish and Vietnamese — every claim backed by a trusted source.

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Women's Health
EN
Iron Deficiency in Female Athletes: Why It's Common and How to Manage It

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.

Supplements
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Ashwagandha for Strength Training and Recovery: What the Evidence Really Shows

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.

Recovery
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Cold Water Immersion for Recovery: What the Evidence Actually Shows

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.

Supplements
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Collagen Supplementation for Tendon and Joint Health in Athletes: What the Evidence Shows

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.

Endurance
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Zone 2 Training: What the Science Really Says About Building Your Aerobic Base

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

Supplements
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Magnesium for Athletes: What the Evidence Says About Cramps, Sleep, and Performance

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

Supplements
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Beta-Alanine for High-Intensity Exercise: What the Evidence Shows

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

Recovery
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Omega-3 Fatty Acids and Exercise Recovery: What a New Meta-Analysis Shows About Inflammation

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

Supplements
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Antioxidant Supplementation in Exercise and Sports Performance: The 2026 Official ISSN Position Stand

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

Vitamins
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Vitamin D for Athletes: What the Evidence Actually Shows

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

Recovery
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Curcumin and Workout Recovery: What the Evidence Says About Inflammation and Joint Pain

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.

Supplements
EN
L-Carnitine for Exercise: What the Evidence Actually Shows

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