Adults with ADHD show consistent deficits in iron (ferritin <30 ng/mL in 84%), vitamin D (6.5 ng/mL lower), zinc, and magnesium. Supplementing these deficiencies produces measurable symptom improvements — particularly ferritin optimization (target >50 ng/mL), vitamin D (4000 IU/day), and zinc (15–30mg). L-tyrosine shows no benefit and develops tolerance. Screen for deficiencies before supplementing; prioritize iron and vitamin D testing.
28 sources 3/4 moderate Updated 2026-04-15
Natural interventions for attention and focus show modest but real effects — especially for non-diagnosed 'brain fog' and subclinical attention difficulties. For clinically diagnosed ADHD, medication (stimulants or atomoxetine) remains the gold standard with the strongest evidence; natural compounds are best used as adjuncts or in cases where medication is declined. The strongest-evidenced natural interventions are: Magnesium (especially in those who are deficient), L-Theanine + low-dose caffeine (best acute focus combo), Omega-3 fatty acids EPA-dominant (particularly in children), and NAC for impulsivity. Effect sizes are consistently smaller than pharmaceutical interventions.
10 sources 3/4 moderate Updated 2026-04-15
Postpartum depletion is near-universal: >50% of women enter the postpartum period iron-deficient, with ferritin commonly <30 μg/L; optimal target is >50 μg/L for symptom resolution. Vitamin D deficiency affects 40–80% of new mothers and requires 2000–4000 IU/day for repletion. DHA depletion at delivery averages 48–50% vs. pre-pregnancy levels and directly correlates with mood and cognitive performance. A phased 6–12 month protocol combining iron + D3/K2 + magnesium glycinate + B12/methylfolate + omega-3 DHA/EPA resolves the majority of postpartum fatigue, brain fog, and telogen effluvium within 3–6 months.
18 sources 4/4 strong Updated 2026-04-15