Truly quantitative dietary studies have stringent requirements.
Hegsted
D M
DM
D018849:Controlled Clinical Trials as Topic / Q000379:methods; D004032:Diet; D015930:Diet Records; D004041:Dietary Fats / Q000008:administration & dosage*; D006801:Humans; D015203:Reproducibility of Results
D004041:Dietary Fats