Another study has found that nuts contribute to health, and it doesn’t necessarily take a lot of them. A Dutch study reported in BBC News found that people who ate 10 grams of nuts per day were less likely to die early from a range of major diseases. The benefits extended to peanuts. There was no benefit found for peanut butter, but that was probably just because of the other ingredients in most commercial peanut butter, which can include artificial fat. Ten grams is just a few nuts. Diet experts caution against eating nuts in large amounts because of the high levels of fat.