Fitness news
10 weekly roundups with the most relevant news from the fitness, nutrition and running world. Every Friday we gather the news from trusted sources and break it down without fluff.
Translating the roundups ES → EN: 10 of 10 are already available. See all 10 roundups in Spanish →
Most recent
Strength, Steps, and Sleep: This Week's Top Fitness & Nutrition NewsThis week: strength starts declining at 35, but just four minutes a day makes a difference after 65; 5,000-7,500 steps may slow cognitive decline; and we break down which recovery tricks actually work.
Strength, Sleep, and Gut Health: This Week's Fitness & Nutrition NewsThis week: a 47-year study pinpoints age 35 as the turning point for strength, HIIT comes out ahead for preserving muscle in older adults, trendy recovery tricks fall short of their promises, and fiber and leucine make headlines in nutrition.
Fitness & Nutrition News: Week 41 of 2026This week: creatine and muscle mass in middle-aged adults, one weekly strength session against sarcopenia, diet drinks and weight loss, and a large analysis of calcium and vitamin D.
Fitness and nutrition news: week 39 of 2026Week 39 brings studies on muscle fat infiltration from ultra-processed foods, evidence that 4-6 servings of whole grains protect the heart, conservative therapies that work better than high-tech ones for knee osteoarthritis, and promising findings on aging and supplementation.
Fitness & nutrition news: week 38 of 2026This week brings discoveries about colored rice varieties that improve metabolic health, the link between ultra-processed foods and intramuscular fat, and findings on how diet can reverse biological age markers in just weeks. Also: whole grains for heart health, the impact of prolonged sitting, and a curious chocolate experiment.
Fitness and nutrition news: week 36 of 2026This week highlights studies on ketogenic diet and liver fat reduction, the metabolic effect of 3 minutes of sprinting versus 90 minutes of moderate exercise, a gut bacterium that helps maintain strength with age, and the lasting imprint of sweeteners on the microbiome.
Fitness and nutrition news: week 35 of 2026This week brings surprising findings: just 3 minutes of sprints can transform your metabolism more than ninety minutes of moderate cardio, your genes may determine whether a low-carb diet spikes your cholesterol, and a specific gut bacterium is associated with stronger muscles in old age.
Fitness and nutrition news: week 34 of 2026This week we bring studies demonstrating the optimal dose of strength training to live longer, how coffee can influence your body composition, why climbing stairs protects your heart, and new insights on exercise and knee osteoarthritis. We also review how gait changes with age and what to do about it.
Fitness and nutrition news: week 33 of 2026This week brings key studies on the ideal dose of strength training to live longer, the brain's role in food addiction, and findings that challenge decades of advice about protein and dairy.
Fitness and nutrition news: week 32 of 2026This week brings studies that challenge established ideas: 75 minutes of brisk walking in a single day reduces visceral fat as much as spreading it out, eating less protein could extend lifespan, and artificial sweeteners accelerate brain aging. Also: coffee and the Mediterranean diet keep racking up points.