The retina places a large energy demand on the body, in part due to the activity of photoreceptors. These specialized cells are responsible for receiving light and transmitting visual information to ...

We see it mentioned in sports supplements, in nutrition magazines, and even in some post-operative diets. But what is glutamine really used for? Is it an essential nutrient? And do we really need to ...

Glutamine is the most abundant amino acid (protein "building block") in the body. It's needed for many critical processes, such as immune function and the regulation of inflammation. Glutamine is ...

Retinal images from mice with (right) or without glutaminase. Photoreceptors are metabolically dependent on glutamine for their growth and survival. The retina places a large energy demand on the body ...