A 2018 pilot study involving 16 healthy adults found that taking 2 tablespoons of peanut butter with white bread and apple juice led to a significantly lower glucose spike compared with taking ...

Because 16 grams of that two-tablespoon serving is coming from fat, that means 76% of peanut butter is made of fat, says Gentile, who is also a spokesperson for the Academy of Nutrition and Dietetics.