L-arginine supplementation appears to reduce waist circumference but has no significant effect on body weight and BMI

In April 2019 researchers from Iran published their review of the medical scientific literature to assess the effect of L-arginine supplementation on body weight, BMI and waist circumference. A total of 8 studies were included in the review. Results showed that L-arginine supplementation appeared to significantly reduce waist circumference but had no significant effect on body weight and BMI. However, a further analysis revealed a reduction in body weight when the supplementation was taken for more than 8 weeks and a reduction in BMI when dosage was up to 8 g/day as well as the supplementation being taken for more than 8 weeks.

Mousavi SM et al. The Effect of L-Arginine Supplementation on Obesity-Related Indices: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. Int J Vitam Nutr Res. 2019 Apr 15:1-11

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