It’s true that infrared heat is a type of radiation, and there are some that claim that this infrared heat penetrates and agitates food molecules within your food…
However, infrared grills simply do not have enough power to alter or denature the protein on foods, thus we can confirm that infrared grills are perfectly safe to cook with and will not endanger your health.
It is generally the oil that you put on the food to cook it that most strongly affects how healthy or unhealthy the food that you grill is for you.