Marginal vitamin C status is associated with reduced fat oxidation during submaximal exercise in young adults
2006
Vitamin C and Fat Oxidation During Exercise
Sample size: 22
publication
10 minutes
Evidence: moderate
Author Information
Author(s): Johnston Carol S, Corte Corinne, Swan Pamela D
Primary Institution: Arizona State University
Hypothesis
Low vitamin C status may reduce fat oxidation during submaximal exercise.
Conclusion
Low vitamin C status is associated with reduced fat oxidation during submaximal exercise.
Supporting Evidence
- Individuals with marginal vitamin C status oxidized 25% less fat per kg body weight during exercise.
- Fat oxidation during exercise was inversely related to fatigue.
- Vitamin C repletion raised fat energy expenditure during exercise 4-fold compared to depleted control subjects.
Takeaway
If you don't have enough vitamin C, your body might not burn fat as well when you exercise.
Methodology
Participants with marginal or adequate vitamin C status underwent a 60-minute treadmill test to measure fat oxidation.
Potential Biases
Participants were unaware of their vitamin C status, which may introduce bias.
Limitations
Small sample sizes limit the generalizability of results.
Participant Demographics
Sedentary, non-smoking men and women aged 18–38 years.
Statistical Information
P-Value
0.009
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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