Loftfield E, Zhang P, O'Connell CP, Kahle LL, et al. Performance of a food frequency questionnaire for estimating ultra-processed food intake according to the Nova classification system in the US NIH-AARP Diet and Health Study. J Nutr 2025 May 5:S0022-3166(25)00274-3. doi: 10.1016/j.tjnut.2025.
PMID: 40334787