Greek research links sugary drinks to liver cancer and finds animal protein aids seniors

A large cohort study of 1.5 million adults in eleven long‑term investigations found that higher consumption of sugar‑sweetened beverages was associated with an increased risk of two liver‑cancer subtypes—hepatocellular carcinoma and intra‑hepatic cholangiocarcinoma. Participants answered dietary questionnaires and were followed for 18 years; artificial‑sweetener drinks showed no such link. The research, led by Cody Watling of the National Cancer Institute, was published on 10 June in JAMA Network Open.

A separate meta‑analysis of twelve studies involving 303 participants examined the effect of animal versus plant protein on muscle‑protein synthesis. While younger adults showed little difference, individuals over 65 years old gained more muscle mass when consuming animal protein, which provides higher amounts of the amino acid leucine. The study, conducted by researchers at the University of Lisbon, also noted that plant‑based proteins are generally cheaper, more environmentally friendly, and suitable for vegans or those with lactose intolerance.