Nestlé: Good Food, Good Life The absorption and utilization of food by the physique is fundamental to diet and is facilitated by digestion. Plants, which convert photo voltaic vitality to food by photosynthesis, are the first food source. Animals that feed on crops usually function sources of food for other animals. To study extra concerning the sequence of transfers of matter and power in the form of food from organism to organism, see food chain. Plants as a food source are divided into seeds, fruits, greens, legumes, grains and nuts. FAO promotes the use of renewable energies and works to…