MACRONUTRIENTS :

Nutrients are environmental substances used for energy, growth, and bodily functions by organisms. Depending on the nutrients, these substances are needed in small amounts or larger amounts. Those that are needed in large amounts are called macronutrients. There are three macronutrients required by humans are Carbohydrates
(sugars), lipids (fats), and proteins. Each of these macronutrients provides energy in the form of calories.

MICRONUTRIENTS:

Micronutrients are nutrients required by organisms throughout life in small quantities to orchestrate a range of physiological functions. For people, they include dietary trace minerals in amounts generally less than 100 milligrams per day, as opposed to macro-minerals, which are required in larger quantities.

The micro-minerals or trace elements include at least iron, cobalt, chromium, copper, iodine, manganese, selenium, zinc and molybdenum. Micronutrients also include vitamins, which are organic compounds required as nutrients in trace amounts. Whenever you start a calorie deficit diet, it is wise to have one good multivitamin tablet containing optimum amount of above mentioned trace elements.

SUPPLEMENTS:

Among all the supplements, for either fat loss or muscle gain, Whey protein and creatine are usually helpful if you are not able to complete your said protein through your diet.