Salty snacks that won't gain weight.

There are not many salty snacks that are not fat, but there are still some. The most recommended snack is seaweed. The calories of seaweed are very low. Salty seaweed basically doesn't have much oil, only some salt and seasoning are put, so the overall calories are very low. Therefore, if you want to gain weight and eat salty snacks, you can eat seaweed.