Minimise Intake of Processed Food
Human Body is designed to consume raw food as it is easily digestible and maximum amount of nutrition is available in it's raw form.
With Industrial revolution, we started processing raw food making it more tasty, attractive and cheap as well. Processing raw food will have refined carbs, excess sugar and bad fats which are not a good option for our body as it takes large amount of time in digesting the same.
Eventually it will end up increasing your fat percentage, diabetes, blocking your veins etc.
To avoid that, start consuming food in it's raw form and limit your processed food intake only when you don't have any option to consume raw food.