APA (7th ed.) Citation

LM, S., & JA, N. (2006). Carbohydrates: How low can you go? Lancet, 367(9514), 880. https://doi.org/10.1016/s0140-6736(06)68357-8

Chicago Style (17th ed.) Citation

LM, Steffen, and Nettleton JA. "Carbohydrates: How Low Can You Go?" Lancet 367, no. 9514 (2006): 880. https://doi.org/10.1016/s0140-6736(06)68357-8.

MLA (9th ed.) Citation

LM, Steffen, and Nettleton JA. "Carbohydrates: How Low Can You Go?" Lancet, vol. 367, no. 9514, 2006, p. 880, https://doi.org/10.1016/s0140-6736(06)68357-8.