Micronutrient evidence brief
B-complex supplements combine several B vitamins in one product. They are usually used for energy, fatigue, mood, and deficiency prevention, but the claims depend heavily on baseline intake.
B vitamins support normal energy metabolism, but supplementation is unlikely to improve energy or performance in users with adequate intake.
Reviews support correcting deficiency, not boosting outcomes in already sufficient users.
Use to correct low intake or specific deficiency risk rather than as a stimulant-like energy supplement.
Do not translate 'energy metabolism' into an ergogenic claim. Excessive high-dose B6 and niacin-style products need safety scrutiny.
Source Drawer
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
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