Refers to meat that is red when raw, such as beef, lamb, or dark-fleshed fish like tuna. Often contrasted with 白身肉 (white meat).
For my health, I try to eat red meat in moderation.
Red meat goes better with this dish.
Compound of 赤身 (akami, 'red flesh') + 肉 (niku, 'meat'). The term is a straightforward description of meat that appears red when raw.