Personalised carbohydrate feeding during exercise based on exogenous glucose oxidation: a proof-of-concept study
Study Details
This new study investigated whether exogenous glucose oxidation rates achieved with a high dose of carbs…
…could inform a personalised glucose dose whilst maintaining glucose oxidation rates with a lower dose 🔍
Eleven endurance-trained participants completed 2 x 150-min cycling bouts with either..
1️⃣ High-Glucose Dose (90 g/hr)
2️⃣ Personalised Dose
Key Findings
Here is what they found ⬇️
The personalised dose provided 28% less glucose (~ 65 ± 10 g/hr) 📉
Yet peak exogenous glucose oxidation was not different (0.91 ± 0.19 g/min) vs the higher dose (0.90 ± 0.15 g/min) 🔥
There were also no statistically or biologically significant differences between the trials for…
🩸 Plasma glucose
🩸 Lactate concentrations
🔥 Endogenous CHO oxidation rates
RPE and stomach fullness were also significantly lower with the personalised dose vs the 90 g/hr dose 🧠
Conclusion
More isn’t always better.
Personalised glucose feeding strategies may be best to optimise performance whilst minimising perception of effort and gastrointestinal discomfort ✅
Reference
https://performancenutrition.biomedcentral.com/articles/10.1186/s44410-025-00003-9