Macronutrients, macronutrients are essential nutrients our body cannot produce on its own, these include Carbs, Lipids, and protein, these all produce energy and balance our metabolic rate, without them our bodies wouldnt process information, fight disease, and produce blood cells nearly as quickly
Your mouth, nose, throat, sinuses and lungs are lined with mucus membranes. These membranes contain mucus glands that produce - surprise - mucus. Mucus-producing membranes line specific passages in your body, like the respiratory and digestive tracts, for protection and support.
While you didn't provide any following sources, healthy sources of energy for humans are usually considered to be different types of fruits and vegetables, lean meats, wholewheat grains, nuts, seeds, and healthy oils. All these constitute a healthy human diet and are a healthy source of energy.