One of several minerals found in watermelon seeds is magnesium. In a 4-gram serving, you’ll get 21 mg of magnesium, which is 5 percent of the daily value

A handful of watermelon seeds contains about 0.29 mg of iron, or about 1.6 percent of the daily value. It might not seem like much, but the NIH only recommends adults get 18 mg in their day.

Iron is an important component of hemoglobin — carrying oxygen through the body. It also helps your body convert calories into energy.

Watermelon seeds also provide a good source of both monounsaturated and polyunsaturated fatty acids — one large handful (4 grams) provides 0.3 and 1.1 grams, respectively.

. Zinc  Watermelon seeds are also good source of zinc. They provide about 26 percent of the daily value in one ounce, or 4 percent DV in one large handful (4 grams).

Zinc is an important nutrient, essential to the immune system. It’s also necessary for:

• the body’s digestive and nervous systems
• cell regrowth and division
• your senses of taste and smell