Rice crackers that have only 35 calories per piece are counted as low-calorie foods, but they have no nutritional value.

Lets take a look at which calories are valuable and which are worthless.

Most of the calories come from white, refined carbohydrates and increase blood sugar levels, which soon brings about a feeling of hunger. Instead of rice crackers, opt for a handful of almonds or other nuts.

Fat free yogurt can contain up to 5 tablespoons of sugar per 150 grams. Instead of fat-free yogurt, opt for a Greek yogurt that contains 20 grams of protein per every 170 grams. Such an amount is needed to maintain healthy muscles, skin and hair.

Numerous dietary snack bars boast low calorific value, but also are full of sugars. Some contain up to 40% of sugar. For this reason it is important to always check the ingredients of the foods you buy.

Groceries with valuable calories

Avocado has 400 calories, but a large amount of healthy monounsaturated fatty acids helps maintain low cholesterol levels.

Olive oil has about 120 calories a tablespoon, but it contains an abundance of antioxidants and healthy fats that contribute to heart health. Also, the Mediterranean diet reduces the risk of breast cancer.

Eggs are often shunted out of concern that are full of fat, but they contain lipids which are extremely healthy for the heart. One egg has about 70 calories, which corresponds to the number of calories in chocolate biscuits. But unlike them, the eggs do not raise blood sugar and cause a sharp sense of hunger in the body.