Food is essential to our lives. If your body lacks food, it will work less effective. The food is what provides energy to us, and we're not the lack of it.
Food is essential to life. If our bodies lack of food, it will work efficiently as they should. Food is what gives us energy and we do not live without it.
Food is essential to life. If our bodies are not effective malnutrition can work as they should. Food is what provide energy for us and we can"t live without.