LIPIDS (1 GRAM YIELDS 9 CALORIES) ARE THE MOST CONCENTRATED SOURCE OF ENERGY IN THE DIET. THEY ARE INVOLVED IN CELLULAR FUNCTION AND STRUCTURE, REGULATION AND EXCRETION OF NUTRIENTS IN CELLS, PROTECT AND HOLD ORGANS IN PLACE, AID IN REGULATING BODY TEMPERATURE AND PROLONGS THE DIGESTIVE PROCESS, CREATING A LONGER-LASTING SENSE OF SATIETY. GOOD EXAMPLES OF HEALTHY FATS: NUTS, SEEDS, OLIVE OIL, FISH OIL, AVOCADOS.