Hazelnuts have a very high protein source: 100 grams contain 14g of protein. Rich in fiber, iron, copper, zinc, selenium, phosphorus, vitamins B1, B2, C, E, and folic acid. Vitamin E is both good for the skin and strengthens the immune system. And B vitamins help the nervous system to function properly.
Although its oil content is high, it does not affect cholesterol levels, nor does it have a negative effect on the heart and vascular system. This fiber-rich oily seed also plays an important role in supporting the digestive system.