Peanuts are among the most loved foods in the world—nutritious, affordable, and incredibly versatile. In Brazil, they’re iconic ingredients in traditional treats like paçoca, pé-de-moleque, cakes, and festive desserts. But beyond the irresistible flavor, doctors say peanuts hide a series of surprising effects—both beneficial and potentially harmful—that many people have never heard about.If you enjoy peanuts often, this guide will show you exactly what they can do for your health.Why Peanuts Deserve Your AttentionOriginally from South America, peanuts are technically legumes, not nuts, and are packed with nutrients your body loves. They’re rich in:High-quality plant proteinHealthy fatsVitamins A, B6, and EMinerals such as calcium, iron, and phosphorusLecithin, amino acids, carotenoids, and cholineThese compounds support everything from heart health to metabolism and brain function.Recent studies suggest that regular peanut consumption may reduce cardiovascular risk, help regulate cholesterol, improve satiety, and even protect against certain diseases.Top Health Benefits of Eating Peanuts1. They Keep You Feeling Full LongerAdding a handful of peanuts—or a tablespoon of peanut butter—to your breakfast can help control hunger for hours. The combination of protein, fiber, and healthy fats slows digestion and stabilizes energy release.Nutritionists often recommend small portions of peanuts as a smart way to manage appetite without skipping meals.2. They Help Stabilize Blood SugarReplacing red meat with peanuts a few times per week can reduce the risk of diabetes by up to 21%, thanks to their ability to slow carbohydrate absorption.A small serving in the morning can help prevent blood sugar spikes, support insulin balance, and maintain steady energy throughout the day.3. They May Reduce the Risk of Rectal CancerStudies show that women who consume peanuts at least twice a week have a 58% lower risk of rectal cancer. For men, the risk drops by 27%.Researchers believe this protective effect comes from folic acid and other antioxidant compounds naturally found in peanuts.4. They Can Help Prevent GallstonesRegular peanut intake is associated with a lower risk of developing gallstones. Experts suspect this benefit comes from peanuts’ ability to help regulate cholesterol—one of the main contributors to gallstone formation.However, more research is still needed to fully confirm this protective link.Important Precautions When Eating PeanutsWhile peanuts offer many benefits, doctors also highlight some precautions to ensure safe consumption:
Don’t Eat Too MuchMore than 50 g per day can lead to weight gain, bloating, and digestive discomfort due to their high calorie and fat content.
Avoid Eating Peanuts on an Empty StomachBecause they are oily, peanuts may trigger stomach cramps or discomfort when eaten before a meal.
Never Eat Moldy PeanutsMoldy peanuts may contain aflatoxin, a dangerous carcinogenic substance. Always check them before eating.
Be Cautious if You Use Blood ThinnersVitamin E, present in peanuts, may interfere with blood clotting and interact with anticoagulant medications.Who Should Avoid Peanuts?1. People With Peanut AllergiesPeanut allergy is one of the most serious food allergies. Even tiny amounts can cause:Hives and itchingThroat swelling and breathing difficultyDrop in blood pressureDizzinessLife-threatening anaphylactic shockAnyone with a known allergy must completely eliminate peanuts from their diet.2. Individuals With Gout or High Uric AcidAlthough peanuts contain fewer purines than red meat, they still provide plant proteins that may raise uric acid levels.Small amounts are usually safe—but never during a gout attack.3. People With Sensitive DigestionEven boiled peanuts can cause gas, bloating, and discomfort in some individuals. Extra caution is recommended for:Young children (under 2 years old)SeniorsPeople recovering from illnessAnyone who frequently experiences digestive issues or abdominal bloatingFinal ThoughtsPeanuts can be a delicious and highly nutritious part of your diet—offering benefits from heart protection to blood sugar control. But like any food, they must be consumed wisely and in the correct amounts. If you have allergies, digestive sensitivities, or chronic conditions, always consult a healthcare professional before adding peanuts to your routine.When enjoyed responsibly, peanuts are one of nature’s most powerful—and tasty—superfoods.