#anxiety

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Macro science close-up of spirulina itself: a dense mound of dried spirulina filaments and flakes, shot from a low three-quarter angle with a macro lens and a shallow depth of field. Crisp, deep blue-green coils and fine threads sit in the focal plane, and the rest melts into soft blur. One small pile rests on a smooth, glossy tomato-red ceramic surface, and the saturated red field contrasts hard with the green algae. Lighting is bright, diffuse studio daylight from the upper left, with soft highlights on the powdery grains and gentle warm shadows. A single wooden spoon edge enters the frame at the corner, dusted with fine green powder. The mood is clean, curious and clinical, with no text, labels or packaging, and no blue cast.

Spirulina Cut Anxiety and Stress in Men on Methadone, RCT Finds

BY NOVA CHEN · Oct 19, 2026

A 12-week, double-blind trial found that 500 mg of spirulina twice daily significantly lowered anxiety and stress scores compared with placebo. The catch: all 50 participants were men on methadone maintenance therapy, so the results may not apply to the general population. Depression, sexual function, drug craving and cognitive test scores did not change. This article breaks down what the study showed, what it didn't, and what to consider on dosing and product quality if you're curious about spirulina.