Nutritional Advice El Mondo
Objectives:
The efficacy and safety of L‐arginine supplements and their effect on maximal oxygen uptake (VO2 max) remained unclear. Therefore, this review article has been conducted.
Does supplementation with arginine increase VO2 max in healthy people?
Study design:
This review article included 11 RCTs.
The different types of arginine supplements were L‐arginine, arginine aspartate, arginine alpha‐ketoglutarate and arginine in combination with antioxidants.
There was no publication bias.
Results and conclusions:
The investigators found subgroup analysis showed that arginine in the form of L‐arginine significantly increased VO2 max compared to the other forms [weighted mean difference = 0.11 L/min, I2 = 0.0%, p = 0.485].
The investigators concluded that supplementation with L‐arginine alone increases VO2 max compared to the other types of arginine or combined with other metabolites or supplements. Future homogeneous and well‐designed randomized clinical trials are needed to a deep understand of the effects of L‐arginine on VO2 max in healthy human subjects.
Original title:
The effect of L-arginine supplementation on maximal oxygen uptake: A systematic review and meta-analysis by Rezaei S, Gholamalizadeh M, […], Doaei S.
Link:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7883807/
Additional information of El Mondo:
Find here more information/studies on protein and sport nutrition.
VO2 max is the maximum amount of oxygen your body can utilize during exercise. The more oxygen your body can use, the more your muscles can work.