We all know the importance of living with a healthy diet but we hardly ever follow healthy eating habits.

We are advised to eat foods rich in nutritional value but we keep eating things that taste good and care the least about the nutrition they provide. Thus, we end up consuming foods that lack nutrients.

We need to learn which food contains what kind of nutrients.

It is advisable to learn which foods are rich in vitamins and minerals so as to increase their intake on a daily basis.

This information is also supposed to help us consume the least amount of calories by limiting calorie consumption to just nutritionally rich food items.

So all we need to focus on is the consumption of foods which are low in calories and high on nutrients.

Here are 14 of the best food with lowest calories and highest nutritional value:

1. Onions

Onions are a common ingredient in most recipes. They contain just 40 calories per 100 grams. Onions are excellent sources of flavonoids and Vitamin C. They help reduce chances of cardiovascular diseases.

2. Cucumbers

An essential ingredient in most salads, cucumbers are a source of Vitamin A, Vitamin C, Folic acid and fibre. They keep the body hydrated as they are 95% water. They contain only 16 calories per 100 grams.

3. Celery

Consisting mostly of water celery contains just 16 calories per 100 grams. It is a source of potassium Vitamin K, Vitamin C and Vitamin B.

4. Brussels Sprouts

They have only 43 calories per 100 grams. These leafy vegetables are rich in Vitamins and essential minerals.

5. Apples

Despite having 52 calories per 100 grams, apples are rich in a range of vitamins and are extremely healthy.

6. Oranges

Having just 47 calories per 100-gram serving, oranges are a rich source of Vitamin C. They contain no fat or cholesterol.

7. Cabbage

Cabbages have just 25 calories per 100 grams. They prevent risk of heart attacks and also accelerate weight loss.

8. Zucchini

Zucchini is extremely rich in nutrients. They have just 17 calories per 100 gram serving. They should be an important part of the diet of anyone who is trying to lose weight.

9. Cauliflower

Cauliflowers have only 25 calories in a 100-gram serving. Also they ease the digestion process and prevent risk of cardiovascular diseases.

10. Kale

This is an important ingredient of a healthy salad. With only 49 calories per 100 grams, kale is rich in nutrients like Vitamins and minerals, as well as fibres.

11. Carrots

Carrots contain anti-inflammatory properties in addition to their ability to improve eyesight. They contain 41 calories per 100-gram serving.

12. Broccoli

Broccoli helps digestion and improves bone health. It has just 34 calories in a 100-gram serving.

13. Asparagus

Asparagus is extremely filling and is low in calories with just 20 in a 100-gram serving.

14. Watermelon

Watermelons have only 30 calories in a 100-gram serving. They are antioxidants and help to keep your body hydrated and also boost your metabolism.