Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Text availability

Article attribute

Article type

Publication date

Search Results

321 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
Page 1
An evaluation of the serum carbon isotope ratio as a candidate predictive biomarker of the dietary animal protein ratio (animal protein/total protein) in a 15-day controlled feeding study of US adults.
O'Brien DM, Sagi-Kiss V, Palma-Duran SA, Cunningham C, Barrett B, Johnston CS, Midthune D, Kipnis V, Freedman LS, Tasevska N. O'Brien DM, et al. Among authors: freedman ls. Am J Clin Nutr. 2022 Apr 1;115(4):1134-1143. doi: 10.1093/ajcn/nqac004. Am J Clin Nutr. 2022. PMID: 35030258 Free PMC article.
Measurement error and dietary intake.
Carroll RJ, Freedman LS, Kipnis V. Carroll RJ, et al. Among authors: freedman ls. Adv Exp Med Biol. 1998;445:139-45. doi: 10.1007/978-1-4899-1959-5_9. Adv Exp Med Biol. 1998. PMID: 9781387
321 results