What is considered a serving size of nuts?

A typical serving size of nuts is generally about 1 ounce, which is roughly equivalent to a small handful. This is approximately 28 grams, or about 22 almonds, 18 cashews, or 14 walnut halves. Serving sizes can vary slightly depending on the type of nut, but keeping it to around 1 ounce is a good guideline for moderation and health benefits.