Firstly, to prepare the healthiest grill, remove all the burnt black buildup and clean your grill properly. The direct exposure of food to high flame results in the production of heterocyclic amines linked with various types of cancer. So, use a perforated foil to line your grill and cook the meal at a lower temperature. Don't forget to marinate the food before grilling. Also, try vegetable grills to increase your vegetable intake. Always keep the grilled foods on clean plates instead of placing them on those in which raw food is handled.