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Monday, September 7, 2026

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Supplements News

How creatine works, and where the evidence stops

The mechanism is well described and the performance evidence is narrow but consistent. The cognitive evidence is thinner, and the label claims are the manufacturers' own.

How creatine works, and where the evidence stops

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Reporting from the field, court, track, and front office

How creatine works, and where the evidence stops

Supplements News

How creatine works, and where the evidence stops

How are dietary supplements actually regulated?

Supplements

How are dietary supplements actually regulated?

Does tart cherry juice actually speed up exercise recovery?

Recovery

Does tart cherry juice actually speed up exercise recovery?

How Creatine Monohydrate Actually Works in Muscle: The Evidence

Nutrition

How Creatine Monohydrate Actually Works in Muscle: The Evidence

A stopwatch face dissolving into simple line-art food icons (a protein source, grains), muted lab-notebook color palette, no people, no gym setting, no befor.

Fitness

Does the post-workout anabolic window actually exist?

FTC sends refund checks over unproven supplement health claims

Business News

FTC sends refund checks over unproven supplement health claims

Does biotin actually help hair, skin and nails?

Beauty

Does biotin actually help hair, skin and nails?

Unlabeled capsules and powder on a pale seamless background

Supplements

What does creatine actually do? The evidence, weighed

Unlabeled capsules beside whole foods on seamless background

Nutrition

Vitamin D and immunity: what the trials actually show

Empty swimming pool complex lit for early morning training sessions

Recovery

Sleep hygiene for early-morning training: what helps at 5 a.m.

Unlabeled capsules on a pale seamless background

Supplements News

NAC is back on supplement shelves. Here's what changed, and what didn't

Infographic timeline of weigh-in reform in combat sports

Sport News

Weigh-in reform in combat sports

Infographic timeline of stimulant substitutions from DMAA to DMHA

Supplements

DMHA, higenamine and the hidden stimulants on banned lists

Diagram of squat depth angles from quarter to full squat

Fitness

Squat depth: what does the research actually show?

Infographic timeline of carbohydrate timing before morning training sessions

Nutrition

What to eat before morning training: fasted versus fed, and timing

White creatine monohydrate powder and scoop on a training room table

Recovery

Creatine between sessions: does it speed recovery?

Runners taking cups at race fueling station

Sport News

Marathon fueling: what the evidence says

Doping control officer collecting sealed sample in athletes' area

Supplements

Contamination and banned substances in supplements: what the data show

Athlete mid-interval on an air bike in a plain gym

Fitness

HIIT versus steady-state cardio: what adapts faster?

Fatigued female distance runner resting on an indoor track while a coach kneels beside her

Nutrition

Low energy availability: the warning signs athletes should know

Infographic of plasma volume and performance changes from post-exercise heat

Recovery

Sauna after training: what heat adaptation really delivers

Sun-baked stadium pitch shimmering at midday heat

Sport News

World Cup 2026 heat: the first ten days

Empty athletics track section with hydration station at dawn

Supplements

Collagen supplements and joint pain: what the trials actually show

Quiet gym corner with light dumbbells racked in morning light

Fitness

Deload weeks: when do they help and why?

Large pots of rice and pasta steaming in a restaurant kitchen before race day

Nutrition

Carbohydrate loading: what the evidence says about old and new protocols

Older cyclist spinning easily on a stationary bike during recovery

Recovery

Active recovery or complete rest: which works better?

Cafeteria tray with rice pasta and vegetables close-up

Sport News

Inside the Olympic Village dining hall

Close-up of white crystalline beta-alanine powder on glass dish

Supplements

Beta-alanine meta-analyses converge: real gains, narrow window

Barbell set at squat height beside worn running shoes

Fitness

Strength training for runners: what does the research show?

Close-up of iron-rich foods including lentils, red meat and spinach

Nutrition

Iron status in endurance athletes: ferritin, foot-strike hemolysis, and screening

Infographic of alcohol dose versus muscle protein synthesis after exercise

Recovery

Alcohol after training: what it does to recovery

Infographic of changeover fueling across five sets

Sport News

Fueling five-set tennis matches

Line chart of creatine monohydrate raw material price 2023 to 2026

Supplements

Creatine market calms after the price spike as gummies reshape demand

Chart of five training intensity zones with zone two highlighted

Fitness

Zone 2 cardio: what it does and doesn't do

Infographic comparing leucine content of whey, soy, pea and rice proteins

Nutrition

Vegetarian athlete protein planning: leucine, combinations, and the evidence

Middle-aged runner walking stiffly down stairs two days after a race

Recovery

Delayed-onset muscle soreness: what works and what does not

Amateur players drinking during hot summer match break

Sport News

Heat, sweat and hydration in football

Shopper comparing two supplement labels side by side in store aisle

Supplements

Proprietary blends: what supplement labels are allowed to hide

Coach outlining training phases to athletes beside a gym whiteboard

Fitness

Periodization blocks explained simply: what do they do?

Runners grabbing cups at a race aid station on a warm day

Nutrition

Hydration and sodium for long training: how runners and cyclists plan it

Neatly folded compression tights and calf sleeves on a locker room bench

Recovery

Compression garments for recovery: what trials show

Feed zone musettes hanging on race route barrier

Sport News

How pro cyclists fuel grand tours

Federal records office aisle with labeled compliance document binders

Supplements

How FDA supplement warning letters actually work

Empty power rack with loaded barbell and a wall clock

Fitness

Rest intervals between sets: what does the evidence show?

Empty boxing gym with heavy bags and ring in early morning light

Nutrition

Making weight safely for combat sports: what the evidence shows

Handheld percussion massager with attachments resting on a gym bench

Recovery

Massage guns: what the evidence actually shows

Electrolyte tablet dissolving in water bottle close-up

Sport News

World Cup 2026 heat: how hydration works

Microscopic mineral crystals texture inside whey powder scoop close-up

Supplements

Heavy metals in protein powders: what the testing found

Close-up of well-used iron dumbbells stacked on a rack

Fitness

How many weekly sets per muscle group does research support?

Close-up of unbranded energy gels, banana and sports drink arranged for a race-morning breakfast

Nutrition

Race-day fueling timeline for marathon runners

Infographic comparing soreness relief and adaptation costs of ice baths

Recovery

Ice baths after training: recovery aid or adaptation killer?

Chart of fuel and fluid shifts at mountain altitude

Sport News

Eating for altitude at Milan Cortina 2026

Bar chart comparing labeled versus measured caffeine in pre-workout products

Supplements

Pre-workout label accuracy: what independent testing has found

Chart showing weekly sets per muscle versus measured muscle growth

Fitness

Training volume or intensity: which matters more for muscle growth?

Infographic chart of protein intake ranges in grams per kilogram by sport type

Nutrition

Protein targets: how many grams per kilogram do athletes need?

College athlete asleep in a dark dorm bedroom before morning training

Recovery

Does sleeping more actually improve athletic performance?

Athlete checking medication status on phone before training

Sport News

WADA 2026 prohibited list: what changed

Athlete checking supplement certification mark on container in kitchen

Supplements

What does third-party certification of supplements actually verify?

Lifter adding a small weight plate to a barbell in a plain gym

Fitness

How progressive overload actually works

Endurance athletes sharing a carbohydrate-rich breakfast before a long training ride

Nutrition

Carbohydrate periodization: what endurance athletes need