A 2025 Lancet series concluded that diets high in ultra-processed foods are associated with higher risks of obesity, type 2 diabetes, and cardiovascular disease.

Is it true that a 2025 Lancet series concluded that diets high in ultra-processed foods are associated with higher risks of obesity, type 2 diabetes, and cardiovascular disease?

Unclear. One item describes a 2025 three-part Lancet Series on ultra-processed foods and diet-related chronic disease, and other items report meta-analytic associations between high UPF intake and obesity, type 2 diabetes, and cardiovascular disease. None of the retrieved items states that the 2025 Lancet series itself concluded that diets high in ultra-processed foods are associated with higher risks of obesity, type 2 diabetes, and cardiovascular disease.

Verdict: PARTIAL LEAN · 3 sources for, 1 against · Last checked 2 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Ultra-processed food. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Ultra-processed_food

Friden, M., Mai, M., Olsen, A., Dahm, C. C., & Ibsen, D. B. (2025). Why causal effects of ultra-processed foods cannot be identified: a systematic review of subtypes of ultra-processed foods and risk of type 2 diabetes. doi.org. https://doi.org/10.1101/2025.10.14.25337888

Monteiro, C. A., Louzada, M. L., Steele-Martinez, E., Cannon, G., Andrade, G. C., Baker, P., Bes-Rastrollo, M., Bonaccio, M., Gearhardt, A. N., Khandpur, N., Kolby, M., Levy, R. B., Machado, P. P., Moubarac, J., Rezende, L. F. M., Rivera, J. A., Scrinis, G., Srour, B., Swinburn, B., & Touvier, M. (2025). Ultra-processed foods and human health: the main thesis and the evidence.. doi.org. https://doi.org/10.1016/S0140-6736(25)01565-X

Ultra-Processed Foods and Human Health: A Systematic Review and Meta-Analysis of Prospective Cohort Studies - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1016/j.advnut.2023.09.009