Know2eat

Peanuts

Arachis hypogaea

Also known as Groundnut, Monkey nut, Goober

Botanically a legume that ripens underground, not a tree nut, though its fat content and culinary use put it with the nuts. The USDA reference entry is for the raw kernel.

Potential health benefits

Best supported: Insufficient

Ordered by how well the human research supports them — strongest first. A rating describes the state of the evidence, not how impressive the food is. How we rate evidence.

Blood lipid profile

Heart Health
Insufficient evidence

Several trials report modest reductions in LDL and triglycerides when peanuts or peanut butter replace refined snacks, though peanut-specific trials are fewer and smaller than those for tree nuts.

Insufficient evidence. Not enough human research to say anything useful yet.

No source is attached to this association yet, so it is rated insufficient by default. It is listed because people commonly ask about it — not because there is evidence for it.

Cardiovascular risk markers

Heart Health
Insufficient evidence

Observational data links regular peanut intake with lower cardiovascular mortality across large cohorts, including in populations where peanuts are the affordable nut. Confounding by overall diet and income remains a real limitation.

Insufficient evidence. Not enough human research to say anything useful yet.

No source is attached to this association yet, so it is rated insufficient by default. It is listed because people commonly ask about it — not because there is evidence for it.

Satiety and appetite

Weight Management
Insufficient evidence

Some trials report that peanuts increase fullness and displace other snack intake, with body weight generally unchanged despite the added calories.

Insufficient evidence. Not enough human research to say anything useful yet.

No source is attached to this association yet, so it is rated insufficient by default. It is listed because people commonly ask about it — not because there is evidence for it.

Ask about Peanuts

Ask about Peanuts

Answers are written only from the entries on this page — the same nutrients, compounds, claims and citations you can read above. Nothing is added from outside the database, and every answer lists what it was built from.

AI explanations are not switched on for this site, so there is nothing to ask here. Everything above is read straight from the database and does not need them.

Key nutrients

Nutrient content per 100 grams
NutrientAmount% DV
Macronutrients
Calories567 kcal28%
Protein25.8 g52%
Total fat49.2 g63%
Carbohydrate16.1 g6%
Fibre8.5 g30%
Total sugars4.72 g
Water6.5 g
Fats
Saturated fat6.28 g31%
Monounsaturated fat24.4 g
Polyunsaturated fat15.6 g
Cholesterol0 mg0%
EPA (omega-3)0 g
DHA (omega-3)0 g
DPA (omega-3)0 g
Linoleic acid (omega-6)15.6 g
Vitamins
Vitamin A0 µg0%
Vitamin C0 mg0%
Vitamin D0 µg0%
Vitamin E8.33 mg56%
Vitamin K0 µg0%
Thiamin (B1)0.64 mg53%
Riboflavin (B2)0.135 mg10%
Niacin (B3)12.1 mg75%
Pantothenic acid (B5)1.77 mg35%
Vitamin B60.348 mg20%
Folate240 µg60%
Vitamin B120 µg0%
Choline52.5 mg10%
Minerals
Calcium92 mg7%
Iron4.58 mg25%
Magnesium168 mg40%
Phosphorus376 mg30%
Potassium705 mg15%
Sodium18 mg1%
Zinc3.27 mg30%
Copper1.14 mg127%
Manganese1.93 mg84%
Selenium7.2 µg13%
Other measured compounds
Beta-carotene0 µg
Alpha-carotene0 µg
Lycopene0 µg
Lutein + zeaxanthin0 µg
Caffeine0 mg
Ash2.33 g

Nutrient values are per 100 g of the USDA reference entry named on this page and vary with variety, growing conditions, storage and preparation.

Source record: Peanuts, all types, raw (USDA FoodData Central, FDC ID 172430).

% DV uses the FDA Daily Values for adults and children aged 4 and over. A dash means no Daily Value has been established for that nutrient.

Bioactive compounds

Compounds present in meaningful amounts. Presence is banded rather than quantified, because whole-food levels vary enormously with variety, growing conditions, storage and preparation.

How preparation changes things

Only effects with real support are listed. If a preparation method is missing, it is because nothing dependable is documented — not because it makes no difference.

  • roastedChanges allergenicity and lipid oxidation

    Dry roasting alters peanut proteins in ways that appear to increase allergenic potency compared with boiling or frying, one hypothesis offered for the different prevalence of peanut allergy between populations that roast and those that boil. Roasting also accelerates oxidation of the fat.

  • boiledIncreases polyphenols

    Boiling peanuts in the shell, common in the southern United States and parts of Asia, transfers polyphenols from the skin and shell into the kernel, raising measured phenolic content relative to raw or roasted nuts.

Things to know

Allergies, interactions and intake concerns. Every food gets this section — a reference where everything is uniformly good is not a reference.

  • Allergy

    Peanut allergy

    Peanut is one of the most significant food allergens, a leading cause of food-related anaphylaxis and frequently lifelong. It is distinct from tree nut allergy, though many people carry both. Guidance on early introduction in infancy has changed substantially and should come from a clinician rather than from general reading.

  • Worth knowing

    Aflatoxin

    Peanuts are highly susceptible to Aspergillus moulds producing aflatoxin, a potent liver carcinogen. Regulated supply chains test for it, but contamination remains a serious problem where peanuts are a staple and are dried and stored informally.

  • Worth knowing

    What is in the jar

    Most peanuts are eaten as butter, roasted salted snacks or confectionery. Many peanut butters add sugar, salt and palm oil, so the profile of the raw kernel does not carry across.

  • Worth knowing

    Phytate and mineral absorption

    Peanut phytate binds iron and zinc within the same meal, as in other seeds and legumes.