Nutrition

Bile acids long have been known to play a role in human metabolism. Synthesized from cholesterol in the liver, bile acids are involved in digestive processes, particularly in absorbing fat. They also are modified...

Researchers at the University of California, Irvine have discovered profound similarities and surprising differences between humans and insects in the production of the critical light-absorbing molecule of the retina, 11-cis-retinal, also known as the...

Cleveland Clinic researchers have identified a new pathway that contributes to cardiovascular disease associated with high levels of niacin, a common B vitamin previously recommended to lower cholesterol. The team, led by Stanley Hazen, M.D.,...

University of Pittsburgh School of Medicine researchers discovered a molecular mechanism by which excessive dietary protein could increase atherosclerosis risk. The findings were published in Nature Metabolism today. The study, which combined small human trials...

Living organisms often create what is needed for life from scratch. For humans, this process means the creation of most essential compounds needed to survive. But not every living thing has this capability, such as...

An advanced human heart organoid system can be used to model embryonic heart development under pregestational diabetes-like conditions, researchers report February 8 in the journal Stem Cell Reports. The organoids recapitulate hallmarks of pregestational...

Only recently was it discovered that amino acids, the building blocks of proteins, exist in two different forms: L- and D-forms. While all natural proteins consist exclusively of L-amino acids, the function of D-amino...

Rickets ran rife in children following the Industrial Revolution, but University of Otago-led research has found factory work and polluted cities aren't entirely to blame for the period's vitamin D deficiencies. In a Marsden funded...

Researchers at the National Institutes of Health observed rapid and distinct immune system changes in a small study of people who switched to a vegan or a ketogenic (also called keto) diet. Scientists closely...

Breast cancer cells ingest and consume the matrix surrounding them to overcome starvation, according to a new study publishing January 16 in the open access journal PLOS Biology, by Elena Rainero of the University...