Iron supplementation guarantees increased energy levels
evidence
The Claim
Many people believe that taking iron supplements will automatically boost their energy and combat fatigue. This belief is rooted in the association between iron deficiency and anemia, which can lead to feelings of tiredness. Thus, it's assumed that supplementation will similarly enhance energy in everyone.
Origin
This myth likely stems from health articles and advertisements promoting iron for fatigue, combined with anecdotal experiences of individuals noticing improvements after iron supplementation.
What Science Says
Research indicates that iron supplementation is beneficial primarily for individuals with diagnosed iron deficiency or anemia. A meta-analysis of randomized controlled trials found that supplementation can improve hemoglobin levels and alleviate fatigue in those deficient, but there is no evidence that it boosts energy in those with normal iron levels. Therefore, excess iron in non-deficient individuals may lead to toxicity rather than energy enhancement.
Verdict
Mostly False
Sources
- PMID:40945632 Psychiatric and cognitive outcomes of iron supplementation in non-anemic children, adolescents, and menstruating adults: A meta-analysis and systematic review.
- PMID:29626044 Efficacy of iron supplementation on fatigue and physical capacity in non-anaemic iron-deficient adults: a systematic review of randomised controlled trials.
- PMID:27087396 Daily iron supplementation for improving anaemia, iron status and health in menstruating women.