Let’s take a look at the nutritional breakdown of peanut butter:
Carbohydrates: 20 grams (13 percent of calories)Fat: 50 grams (72 percent of calories)Protein: 25 grams (15 percent of calories)
There are 558 calories in a 100-gram portion of peanut butter. Although peanut butter is a rich protein, it is lacking in some essential amino acids such as lysine. If you want to make use of the protein you need to eat a lysine-rich source of protein along with it, such as meat or cheese.
Peanut butter contains about 50 percent monounsaturated fat and 20 percent saturated. The remaining fat is polyunsaturated fat, comprised mostly of omega-6 fatty acid linoleic acid, which can cause a problem
100-gram serving of peanut butter provides a plethora of vitamins and minerals including:
Vitamin E: 45 percent of the RDAVitamin B3 (Niacin): 67 percent of the RDAVitamin B6: 27 percent of the RDAFolate: 18 percent of the RDAMagnesium: 39 percent of the RDACopper: 24 percent of the RDAManganese: 73 percent of the RDA
In addition, peanut butter also includes a good dose of vitamin B5, potassium, iron, zinc and selenium
Although all of this sounds pretty good, it is important to realize that calorie for calorie, peanut butter isn’t all that nutritious, when compared to low-calorie plant foods such as spinach or broccoli.
Peanuts contain peanut agglutinin (PNA). This is a protein that binds to a sugar seen in many human cancers.
Peanuts, which grow underground, are colonized by a fungus known as aspergillus, a source of aflatoxins. These are toxic and highly carcinogenic. Although we can resist short-term exposure to these toxins, no one is quite sure what long term exposure might do. Research says it may not be a good thing