Research
Cellular
Muscle glycogen levels increased by approximately 80% after 1 hour of recovery for both caffeine and carbohydrate treatments.
Both caffeine and carbohydrate can effectively promote glycogen recovery in trained individuals.
StrongSupportsmedium confidence
Muscle glycogen levels were similar at exhaustion [ approximately 75 mmol/kg dry wt (dw)] and increased by a similar amount ( approximately 80%) after 1 h of recovery.
Why this rating
Based on study design from abstract.
Source
High rates of muscle glycogen resynthesis after exhaustive exercise when carbohydrate is coingested with caffeine
David J. Pedersen et al. · Journal of Applied Physiology · 2008
DOI 10.1152/japplphysiol.01121.2007
rct · n=7Cited 118×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Coingestion of caffeine (8 mg/kg body mass) with carbohydrate (4 g/kg body mass) results in a 66% higher rate of muscle glycogen resynthesis during a 4-hour recovery period compared to carbohydrate alone.Strong
- Caffeine coingestion leads to higher muscle glycogen accumulation after 4 hours of recovery compared to carbohydrate alone.Strong
Related findings · Cellular
- Athletes aiming to reduce fat mass and preserve FFM should consume protein intakes in the range of ∼1.8-2.7 g kg(-1) d(-1).Strong
- A minimum daily protein intake of ≥1.6 g/kg is necessary to observe significant improvements in muscle mass from whey protein supplementation.Strong
- Most athletes ideally need 1.2 to 2.0 grams/kg of body weight/day of protein, preferably split across 3-4 meals.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →