Study Finds Amaranth Extract May Improve Aerobic Capacity
Amaranth is an herbaceous plant or shrub. The leaves and seeds contain fiber, protein, nitrates, and micronutrients. A recent study suggests that amaranth extract may help improve aerobic capacity during exercise.
Twenty-one male participants with an average age of 21.5 participated in the study. They performed an increasing cycling exercise three times. The first test was performed at baseline. The second test was performed after consuming an oat-based performance bar containing 400 mg of nitrates from amaranth extract or a placebo. The third test was performed after consuming the performance bar or a placebo for 6 days. The researchers measured aerobic capacity and maximum rate of oxygen consumption.
The researchers found that peak aerobic power and the maximum rate of oxygen consumption were significantly increased after 6 days of amaranth extract supplementation. No significant difference was seen after one dose of supplementation or in the placebo group.
The study was conducted by researchers from the Lithuanian Sports University. It was published online ahead of print on July 13, 2020 in the Journal of the International Society of Sports Nutrition.