What Happens to Your Body When You Eat Watermelon Seeds

Nearly every part of a watermelon is edible, including its seeds, which are safe to eat and full of nutrients.

Health Benefits of Eating Watermelon Seeds

Watermelon seeds might be tiny, but they’re packed with nutrition. Here are just a few possible health benefits of eating them regularly:

1. Boost Energy

Watermelon seeds are low in calories—about 158 per ounce—but rich in energy-yielding nutrients. They provide plant-based protein and essential amino acids, comparable to those found in many nuts. 

2. Support Digestive Health

These seeds contain insoluble fiber, which helps keep your digestive system regular and may help manage cholesterol and blood sugar levels.

3. Deliver Plenty of Essential Nutrients

Watermelon seeds are a source of key nutrients like magnesium, iron, calcium, folate, zinc, potassium, and phosphorus. These support bone and muscle health, blood pressure regulation, immune function, and fluid balance.

4. Promote Heart Health

They contain heart-healthy fats, including monounsaturated and polyunsaturated fatty acids, omega-6 linoleic acid, and oleic acid, which may support cardiovascular and metabolic health.

5. Reduce Inflammation

Flavonoids and bioactive compounds like lycopene in watermelon seeds have anti-inflammatory effects, which may help protect against chronic disease.

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‌Potential Risks of Eating Watermelon Seeds

If you were ever warned not to swallow watermelon seeds as a kid because they’d grow in your stomach, you might be hesitant to eat them, even if you know that’s a myth. While watermelon seeds are safe and nutritious, there are some possible downsides you should be aware of:

• GI discomfort: The seeds are not easily digested and may cause constipation, gas, or bloating—especially if you eat a large quantity or suddenly increase your fiber intake.
• Higher fat intake: While the fats are mostly healthy, watermelon seeds contain about 13 grams of fat per ounce. If you're limiting fat intake, be mindful of portion size.
• Choking risk: Although small, the seeds could pose a choking risk, especially for those with swallowing difficulties or a history of aspiration.
• Allergies or sensitivities: Allergies to watermelon are rare, but possible. Some people may also have sensitivities to the seeds.
• Nutrient absorption: Watermelon seeds contain phytic acid, an antinutrient that can interfere with zinc and iron absorption. However, the amount is unlikely to affect most people unless consumed in very large quantities.

How to Eat Watermelon Seeds

Like other seeds, watermelon seeds are a versatile food that can stand on their own as a snack or be part of a meal. Here are a few ideas of how you can add more of them to your diet:

• Use in smoothies 
• Sprinkle on top of toast
• Mix into cereal or granola
• Bake or roast for a snack 
• Add to baked goods or bread 
• Mix into hummus 
• Add crunch to salads, sandwiches, and wraps