How Many Calories Are in Peanut Butter?

How Many Calories Are in Peanut Butter?
2026-01-12

How Many Calories Are in Peanut Butter?

People often choose breakfast foods by looking at nutrition and calories. Peanut butter on toast is a common choice. Many wonder how many calories are in a spoonful. Here is a simple guide. It covers ingredients, calories, and storage tips.

peanut butter and sandwich

Ingredients in Peanut Butter

Peanuts are the key ingredient. Most peanut butter uses roasted peanuts. Roasting brings out flavor and helps in grinding. Some brands use raw peanuts, but roasted kinds are more usual.

a spoonful of peanut butter
Many brands add a little oil. This makes the texture smooth and stops separation. Common oils are peanut oil, soybean oil, or palm oil. Natural peanut butter often keeps just the peanuts’ own oils.
Other ingredients can include salt for taste. Some versions add sugar or honey. Good peanut butter often contains only peanuts and salt.

Nutritional Content in Peanut Butter

A 2-tablespoon (32-gram) serving of smooth peanut butter offers:
- Fat: 16 grams. Most is healthy unsaturated fat. Saturated fat is about 2.5 grams.
- Sugar: 3 grams, mainly from the peanuts.
- Protein: 8 grams, a helpful plant-based source.
- Sodium: 140 milligrams. Low-sodium kinds have less.
- Fiber: 2 grams, which aids digestion.
It also has some vitamin E, B6, magnesium, and potassium.

How Many Calories in Peanut Butter?

Calories depend on type and serving size. A 2-tablespoon serving of regular smooth peanut butter has about 190 calories. This is a normal amount for toast or a smoothie.

a peanut butter sandwich
Natural peanut butter has similar calories—around 188 per serving. The natural fats in peanuts keep the calorie count close.
Crunchy peanut butter has about 192 calories per serving. Texture does not change calories much. Low-fat peanut butter has near 160 calories per serving, but it often includes extra sugar.

Is Peanut Butter Good or Bad for You?

Peanut butter is healthy if eaten in moderation. It offers healthy fats, protein, and fiber. These help you feel full and keep blood sugar steady. The fats may support heart health.
But peanut butter is high in calories and fat. Too much can cause weight gain. Some brands add extra sugar, salt, or unhealthy oils. Pick natural peanut butter with few ingredients.
A sensible serving is 1–2 tablespoons per day. It goes well with whole-grain bread, fruit, or oatmeal.

What to Do If You Have a Peanut Allergy?

Peanut allergy is common. Reactions range from mild to severe. If you think you have an allergy, stop eating peanut butter right away. Avoid all foods with peanuts. Read labels closely.

a bowl of peanut butter and a jar of peanut butter
Mild signs include hives, itching, or stomach issues. Over-the-counter antihistamines might help. For serious symptoms like trouble breathing, get emergency care.
If you have a peanut allergy, see a doctor. Safe options include sunflower seed butter or almond butter.

Does Peanut Butter Go Bad?

Yes, peanut butter can go bad. But it keeps longer than many foods. The high fat content can turn rancid over time. Rancid peanut butter smells and tastes unpleasant.
Natural peanut butter spoils faster. It has no preservatives. Unopened, it can last 6–9 months in the pantry. Store-bought peanut butter can last over a year unopened.
Store peanut butter the right way. Keep it away from heat, moisture, and air. Always check the expiration date.

Smell is the first sign. Rancid peanut butter has a sour or bitter smell. If it smells odd, do not eat it.

opened and unopened peanut butter
Texture changes can also show spoilage. Fresh peanut butter spreads easily. If it is dry, lumpy, or has a slimy layer, it may be bad. Mold is a clear warning—look for spots.
Taste is a final test. A bitter or sour taste means it is rancid. If you see any signs, throw it away.

How Long Does Peanut Butter Last After Opening?

After opening, shelf life gets shorter. In the pantry, opened store-bought peanut butter lasts 2–3 months. Natural peanut butter lasts 1–2 months.
Unopened peanut butter is filled using a peanut butter filling machine, which prevents air and moisture from entering, thus extending its shelf life. Sealed jars can stay fresh up to a year in a cool, dry pantry.
The refrigerator helps. It slows rancidity. Opened peanut butter can last 6–9 months in the fridge. Let it warm a little before use for easier spreading.

Peanut butter is a nutritious food. A 2-tablespoon serving has about 190 calories. It provides healthy fats, protein, and fiber. Eat it in sensible amounts.
Know its ingredients and how to store it. Check for spoilage before eating. Those with allergies should pick other options. Choose natural peanut butter and store it well. Enjoy it on toast, in smoothies, or as a dip. It fits well into a balanced diet.
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