Peanut butter, a lunchbox favorite for kids and grownups, can play a positive role in your daily nutrition. With the inexpensive source of protein, the peanut butter’s also used in peanut butter pie have a healthy dose of vitamins and minerals. Since peanut butter contains fats it is important to not over eat it, if you are watching your cholesterol levels. Peanut butter contains no cholesterol but the saturated fat in peanut butter can raise your cholesterol levels by raising low-density lipoprotein levels, the bad type of cholesterol. A serving of peanut butter, which equals 2 tbsp. Of peanut butter, supplies 3g of saturated fat. But a serving of peanut butter also have 12g unsaturated fats, which help lower cholesterol levels. Peanuts also contain monounsaturated fats, which decrease LDL levels and raise high-density lipoprotein, which is the good cholesterol. The peanut butter is okay with some saturated fat, but if you overeat it can cause cholesterol problems.