Peanut kernels contain a lot of protein, fat and calories.Raw peanut kernels contain a large amount of vitamin B1, niacin, magnesium, potassium, pantothenic acid, copper, zinc, phosphorus and iron. For every 50 grams of raw peanut kernels, water accounts for 5.6%.Roasted peanut kernels contain magnesium, niacin and potassium, zinc, copper and vitamin B6. For every 50 grams of dried roasted peanut kernels, water content is 1.4%, protein 11.8 grams, fat 24.8 grams and carbohydrate 10.7 grams, providing 1226.5 kilojoules of calories.