Micronutrients & recovery
Micronutrient supplementation alleviates fatigue and improves physical performance in individuals with marginal deficiencies, but does not enhance performance in those with adequate dietary intake.
If you are chronically tired and eat a restricted or poor-quality diet, a multivitamin may help restore your energy levels, but it will not work instantly. You must take it consistently for at least 6 weeks to see benefits. If you already eat a balanced, nutrient-rich diet, adding supplements is unlikely to improve your energy or performance.
Micronutrient supplementation can alleviate deficiencies, but supplements must be taken for an adequate period of time.
Why this rating
The paper is a review citing multiple studies; it establishes a strong physiological link but notes limited clinical data on performance outcomes.
Source
The Role of Vitamins and Minerals in Energy Metabolism and Well-Being
E. C. Huskisson et al. · Journal of International Medical Research · 2007
DOI 10.1177/147323000703500301
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