100 grams of hazelnuts contain 628 calories of energy, 16.7 grams of carbohydrates, 14.95 grams of protein, 60.75 grams of fat, and 9.7 grams of fiber. Rich in nutritional value, hazelnuts also contain essential vitamins and minerals. 100 grams of hazelnuts contain 680 milligrams of potassium, 114 milligrams of calcium, 20 milligrams of vitamin A, 6.3 milligrams of vitamin C, and 4.7 milligrams of iron. Because of their rich nutritional value, hazelnuts are a suitable snack. When consumed in the recommended daily intake, hazelnuts offer numerous benefits. Consuming hazelnuts in moderation is thought to boost the immune system and strengthen bones. However, like many other nuts, excessive consumption can lead to various harmful effects. Therefore, it is recommended to follow the guidelines recommended by specialist doctors and dietitians when consuming hazelnuts. Expert doctors and dietitians generally consider a daily handful of hazelnuts to be the appropriate amount for the human body's needs. People with allergies, in particular, should be cautious when consuming hazelnuts, both alone and in other foods.