Protein for Weight Loss, How Much You Actually Need Per Day
Protein for weight loss: 1.2 to 1.6 g/kg a day per 2026 US guidelines, plus kidney and 30 g myths.
Cold Plunge After Workout, Does It Blunt Muscle Growth
Cold plunge after workout and muscle growth: 8 trials in a 2024 meta-analysis, Roberts 2015 (21 men, 12 weeks), and when ACSM suggests waiting 4 to 6 hours.
Caffeine Cutoff Time, 100 mg vs 400 mg Changes the Answer
Caffeine cutoff time: 100 mg at 4 h had no effect in a 2025 trial, 400 mg hurt sleep at 12 h.
Fasted Cardio, Why Burning More Fat Didn’t Mean Losing More
Fasted cardio burns more fat during the workout, but a 4-week trial found no real difference in fat loss vs fed cardio. Here’s what the research shows.
Massage Guns, Do They Actually Speed Up Recovery
Massage guns improve short-term range of motion, but a recent meta-analysis found no significant soreness relief. Here’s what the research really shows.
Sauna Benefits, What the Finnish Heart Study Can’t Prove
Sauna benefits look huge in Finnish data, with 63% lower sudden cardiac death risk, but it’s observational. Here’s what new mental health trials add.
Caffeine and Metabolism, What a New 2026 Study Found
Caffeine and metabolism: a 2026 trial found fat oxidation benefits peak around 3-5mg/kg, with no extra effect at higher doses. What the research shows.
Liquid Calories, Why Your Body Doesn’t Count Them the Same
Liquid calories: a 4-week trial found solid-food calories got almost fully offset later, but the same calories as soda caused weight gain. Here’s why.
Zone Zero Training, The Recovery Method Below Zone One
Zone zero training means moving at under 50% of max heart rate. Here’s what this ultra-low-intensity recovery trend actually does for your training.
Vitamin D Deficiency, The Blood Test Number Nobody Explains
Vitamin D deficiency affects roughly 1 in 4 Americans. What the blood test number actually means, who’s at risk, and the dose research supports.