Supplements
yogurt supports healthy body weight
In plain terms: Does yogurt help with weight control?
Part of: • Yogurt
In big long-term studies, yogurt is repeatedly the food most linked to less weight gain over the years - a striking and consistent pattern. But it's observational (yogurt eaters tend to live healthier overall), and the few real trials are small, so it's a promising association rather than proof that yogurt itself keeps weight off.
📅 Last reviewed: 2026-07-15 ⓘ
Evidence ladder
How far up the ladder this claim has climbed. A high consensus on a low rung means "consistent so far," not "proven in people."
Top evidence so far: All trials, pooled (Meta-analysis)
How the studies fall
What the evidence shows
In large cohort studies, yogurt consistently stands out as the single food most associated with less weight gain over time (famously in Mozaffarian's pooled cohorts, where yogurt beat every other food tested). The direction is impressively consistent across cohorts.
The evidence (12)
| Source | Grade | Stance | Quality | Finding |
|---|---|---|---|---|
| Eales J et al. 2016 · Int J Obes | observational | supports | moderate | SR: cohort/cross-sectional consistently lower BMI/weight/waist with yogurt; RCTs underpowered. |
| Konieczna J et al. 2019 · J Nutr | observational | supports | moderate | PREDIMED cohort (7,009): increased low-fat yogurt inversely associated with annual weight change. |
| Mohammadi-Sartang M et al. 2018 · Nutr J | RCT | mixed | low | RCT (87): fortified vs plain yogurt gave greater fat-mass/waist reduction (comparator is plain yogurt). |
| Hashemi Javaheri FS et al. 2025 · BMC Endocr Disord | meta-analysis | mixed | moderate | Dose-response meta 5 studies: high-fat fermented yogurt HR 0.84-0.37 for abdominal obesity; pooled fermented-dairy ns. |
| Mozaffarian D et al. 2011 · N Engl J Med | observational | supports | high | NEJM 3 pooled cohorts (121k): yogurt the strongest inverse food for 4-yr weight change (-0.82 lb/serving/d). |
| Bell M et al 2025 · study_type: RCT | RCT | tested-null | low | 8-wk pilot RCT, 48 adults 55+, 2 daily servings Greek yogurt (350g/day). Body mass increased modestly across all groups over the trial (time effect P=0.033); no fat mass change. |
| Martinez-Gonzalez MA et al. 2014 · Nutr Metab Cardiovasc Dis | observational | supports | moderate | SUN cohort (8,516): >7 servings/wk yogurt HR 0.80 for overweight/obesity. ↩ SUPERSEDED — pooled in the review above, counted once |
| Smith JD et al. 2015 · Am J Clin Nutr | observational | mixed | high | 3 pooled US cohorts (121k): yogurt associated with relative weight loss vs red meat/cheese. |
| Yuan M et al. 2023 · J Nutr | observational | supports | moderate | NHS II: >=2 servings/wk yogurt RR 0.69 for obesity vs total dairy RR 0.88. |
| Anderson GH et al 2026 · study_type: RCT | RCT | mixed | medium | 12-wk RCT, 74 overweight/obese adults, +3 daily full-fat dairy servings (incl. yogurt). No significant effect on body weight/BMI/waist circumference/fat mass vs control (P>0.05) in energy-neutral/ad-libitum arms; only energy-restricted arm |
| Mozaffarian D 2016 · Circulation | mechanism | mixed | low | Review: yogurt among evidence-based dietary priorities for favorable weight/cardiometabolic outcomes. |
| Schwingshackl L et al. 2016 · Nutrients | meta-analysis | supports | moderate | SR+meta 24 cohorts: yogurt uniquely inverse (-41 g/yr per serving); no signal for milk/whole-fat dairy. |
Disagree, or know a study we missed?
We grade by evidence, not opinions. The way to weigh in is to point us to a study we haven't cited (check the evidence table above first), or to flag a problem with one we have. Every submission is reviewed; if it holds up, the grade updates and shows in Science Changes Its Mind.
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Educational only, not medical advice. Grades and scores reflect published evidence weighted by study design and quality; see the methodology.