Research
Energy balance
The proportion of individuals at risk of deficiency increased significantly in the Atkins, LEARN, and Ornish groups for various micronutrients.
Practitioners should monitor micronutrient intake in patients following these diets to prevent deficiencies.
StrongSupportsmedium confidence
The proportion of individuals at risk of deficiency increased significantly (p<0.05) in the Atkins group for thiamin, folate, vitamin C, iron, and magnesium; in the LEARN group for vitamin E and calcium; and in the Ornish group for vitamins E and B12 and zinc.
Why this rating
The study design involved random assignment and specific measurements of nutrient intake.
Source
Micronutrient quality of weight loss diets that focus on macronutrients: results from the A TO Z study
Christopher D. Gardner et al. · The FASEB Journal · 2008
DOI 10.1096/fasebj.22.1_supplement.1084.7
rct · n=291Cited 16×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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