1. Always remember to keep the body hydrated during winters. Most people are dehydrated and end up overeating as they cannot differentiate thirst from hunger. Make sure to drink 2-3 litres of water each day. 2. Make it a point to consume a good amount of fruits and vegetables in your daily diet. These provide the body with vitamin C and zinc that are essential for better immunity. 3. Keep your carbohydrate in check during the winters as many people end up consuming too many carbs and put on a lot of weight.