Health is the greatest gift, contentment the greatest wealth, faithfulness the best relationship̎.
Health refers to a person’s overall well-being physical, mental and social and not merely the absence of disease or infirmity. It is not just about the objective of living but also about having resources to lead a better life.
The real wealth is healthy habits such as a balanced diet, exercise, and regular sleep.
The theme for World Health Day 2021 is “Building a Fairer, Healthier World”.
Choose a variety of healthy carbohydrates, fiber-rich food, fish & good fats. 
Limit excessive consumption of instant food (noodles, doughnuts, pizza)
, and also you should think about the amount and the number of times you consume them.
Consume non-refined rice, whole wheat flour and oats like grains instead of refined rice and wheat flour.
Limit saturated fat-containing food (coconut oil-rich food, beef, pork, cheese, butter). Avoid the use of the same frying oil again and again.
Not only dietary habits but also it is very important to have proper lifestyle practices.
By engaging, adequate physical activities of at least 30 minutes per day or 30-45 minutes for 3/4 days per week. Ex: brisk walking, swimming, running, cycling, etc. 
Avoid smoking and should limit your alcohol consumption 
Try to maintain your stress levels properly.You can engage in activities such as listening to music, meditation or any other hobby that makes you relaxed.
Therefore healthy dietary practices with being physically active will help you to maintain and improve your health.
Nutrition Society – Wayamba University of Sri Lanka