A nut is a fruit consisting of a hard or tough nutshell protecting a kernel which is usually edible. In general usage and in a culinary sense, a wide variety of dry seeds are called nuts, but in a botanical context "nut" implies that the shell does not open to release the seed.

Which nut has the least amount of carbs?

Can I eat nuts on keto?

“Nuts contain healthy fats and a little bit of protein, so when trying to hit your macros, they can make a good addition to the [keto] diet,” says Scott Keatley, R.D., of Keatley Medical Nutrition Therapy. Unfortunately, the right nuts don't come with a keto-friendly label.