Research
Energy balance
Consuming carbohydrates immediately after exercise maximizes the rate of muscle glycogen re-synthesis, which is critical when recovery time between sessions is short (4-8 hours), although total glycogen storage over 24 hours is similar regardless of feeding frequency if total intake is sufficient.
If you train twice a day or have a competition the next day, eat carbohydrates immediately after your session to replenish energy stores as fast as possible. If you only train once a day, you can wait for your next meal without worrying about performance.
GoodSupportsHIGH confidence
The rate of muscle glycogen storage was highest (7.7 mmol/kg wet weight (ww) per h) for the first 2 h period when subjects ingested CHO immediately post exercise but was lower (4.1 mmol/kg ww per h) when CHO consumption was delayed for 2 h after exercise had stopped... failure to consume CHO in the immediate phase of post-exercise recovery results in very low rates of glycogen restoration until feeding occurs... muscle glycogen storage after 24 h was similar when 525 g CHO was fed as two or seven meals
Why this rating
Review of multiple studies including isotope tracing.
Source
Effect of meal frequency and timing on physical performance
John A. Hawley et al. · British Journal Of Nutrition · 1997
DOI 10.1079/bjn19970107
narrative_reviewCited 100×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Consuming carbohydrates 3-4 hours before exercise significantly increases muscle and liver glycogen content and improves endurance performance compared to fasting, whereas consuming carbohydrates 30-60 minutes before exercise causes transient metabolic perturbations (hyperinsulinemia, hypoglycemia) that do not impair performance and may be beneficial.Good
- Ingesting carbohydrates during prolonged exercise improves performance by maintaining plasma glucose and sparing liver glycogen, regardless of whether the CHO is consumed in a single bolus or multiple smaller feedings, as long as the total amount is sufficient.Good
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