Chlorophyll's Surprising Health Benefits—and Why Experts Are Skeptical

Chlorophyll, the green pigment essential for plant photosynthesis, is gaining attention for its potential health benefits. Recent studies suggest it may help with inflammation, weight loss, and even skin healing. But experts remain cautious about its use in supplements. Chlorophyll is best known for its role in helping plants convert sunlight into energy. Beyond this, research indicates it has antioxidant and anti-inflammatory effects. Some small studies propose that chlorophyllin—a semi-synthetic form used in supplements—could ease symptoms of inflammatory bowel disease (IBD).

Topical applications of chlorophyllin have also shown promise. A few trials found that ointments containing the compound might speed up wound healing. Other research suggests it could improve acne and reduce sun damage when applied to the skin. One study compared a green plant membrane supplement, which included chlorophyll, to a placebo. Participants taking the supplement experienced greater weight loss. However, registered dietitian Beth Czerwony advises against chlorophyll supplements, citing limited evidence. While generally safe in moderation, they may cause mild side effects like stomach upset, green-tinted stools, or increased sunburn risk. Cleveland Clinic has clarified that it does not endorse any non-Cleveland Clinic products or services, including chlorophyll supplements.

Though early findings highlight possible benefits of chlorophyll, experts urge caution. The compound’s effects on weight loss, skin health, and inflammation require more research. For now, its use in supplements remains unproven and may carry minor risks.