
Seaweed is a low-calorie, nutrient-dense food, providing a variety of vitamins and minerals. A 10-gram serving of raw seaweed contains approximately:
- Calories: 4.5
- Protein: 0.3 grams
- Carbohydrates: 0.9 grams
- Fat: 0 grams
- Fiber: 0 grams
- Sodium: 87.2 milligrams
- Calcium: 15 milligrams
- Magnesium: 10.7 milligrams
- Iron: 0.2 milligrams
Seaweed is also a good source of iodine, which is crucial for thyroid function, and contains other important nutrients like vitamin K, folate, and several B vitamins, including B12.

