which nutrients provide energy for the human body? choose all that apply

carbohydrates
fat
vitamins
iron

Carbohydrates and fats provide energy for the human body. Vitamins and iron do not provide energy directly but are essential for proper body function.

which of the following help decrease heart disease and lower cholesterol?

unsaturated fats
saturated fats
calories
trans fatty acids

Unsaturated fats help decrease heart disease and lower cholesterol. Saturated fats and trans fatty acids have the opposite effect and are harmful to heart health. Calories are a measure of energy from food and are not directly linked to heart disease and cholesterol levels, but consuming too many calories can lead to weight gain, which can increase the risk of heart disease.

The nutrients that provide energy for the human body are carbohydrates and fats.