May Enhance Aerobic Endurance

Only one study looked at chlorella's effect on aerobic endurance, and it found it to be beneficial. For four weeks, researchers gave a group of young adults either six grams of chlorella or a placebo. The chlorella group demonstrated a considerably enhanced ability to saturate their lungs with oxygen at the end of the research, which is a measure of endurance. There were no changes in endurance in the placebo group.

This impact could be attributed to chlorella's high branched-chain amino acid concentration. Branched-chain amino acids are a group of three amino acids that have been shown in tests to improve aerobic capacity.