Peanut butter may help lower your blood sugar, and may contribute to long-term control.
Peanuts and peanut butter are digested more slowly, and therefore release sugar gradually into the bloodstream. The GI content of foods is measured on a 100-point scale, with 100 representing the highest GI foods. Peanuts, however, have a GI of only 14​​. Including peanuts or peanut butter at breakfast not only reduces the rise in blood sugar for that meal, it may also help diminish spikes all the way through lunch! One study found that peanuts and peanut butter promoted the secretion of hormone peptide YY (PYY), which helps suppress the appetite​.