Welcome to the world of nutrition! As a starting point, it’s important to understand the fundamentals before exploring nutrition plans or diet options. Two of the most key concepts are macronutrients and micronutrients, which offer your body energy, building blocks, and regulation to achieve optimal health. For those just starting out, this knowledge is key to develop a balanced and healthy relationship with food to maintain a healthy body and mind.
Macronutrients serve as a source of energy and must be consumed in higher quantities, whereas micronutrients play a crucial role in bodily functions and are necessary, albeit in lower amounts. Collectively, they promote bodily functions, growth and development, and aid the body in defending itself.
Macronutrients: the Body’s Energy Sources
When talking about diets, people often refer to macronutrients. These are the types of nutrients that your body requires in large quantities for your diet to be healthy. Carbohydrates, protein, and fats are all examples of macronutrients. Macronutrients are very important for helping your body get the nutrients it needs for energy, to repair tissues and muscles, and for the function of other systems and organs.
Carbs
Carbohydrates provide the body with its main source of energy. They are broken down into glucose, which is used to power the brain, muscles, and organs. Carbohydrates include:
Simple carbs: These are present in fruits, honey and white sugar. While they offer instant energy, they may also lead to a drastic increase in blood sugar.
Complex carbohydrates. These are in grains, beans, and vegetables. They take a while to digest, giving you a more gradual source of energy and helping your digestive system function.
Carbs offer a range of benefits, from providing energy, supporting brain functioning, and aiding in exercise. Stick with whole, unrefined options to maintain energy levels and avoid deficiencies.
Proteins
Protein is what makes up the body. It is made up of amino acids, which aid in muscle repair, enzyme creation, hormone regulation, and immune function.
Examples of good protein foods are:
Lean meats, poultry, and fish.
Eggs and dairy.
Nuts, seeds, and pulses.
Proteins are needed for:
Growth and repair of tissues
Hormones and enzymes
Aiding the immune system
Keeping your skin, hair and nails in good condition
Dietary Fats
We need fat for energy, as a building block for cells, to produce hormones, and to absorb the fat soluble vitamins (A, D, E, K).
The following are some types of fat:
Unsaturated fats: From olive oil, avocados, nuts, and fatty fish, these fats protect heart and brain function.
Saturated fatty acids: Butter, cheese, fatty meat; eat in limited amounts.
Trans fatty acids: Mainly present in processed foods; these are recommended to be avoided due to their adverse health implications.
Fats also function to keep us warm, cushion our organs and keep us full (thus supporting weight management and regulating our energy stores).
However, micronutrients are just as important as macronutrients, if not more so. They include vitamins and minerals that cannot be made by the body and are essential for proper functioning.
The micronutrients are the nutrients that the body needs in lesser quantities, but this does not mean they are not so necessary. Micronutrients are in charge of controlling many of the body’s processes, participating in metabolism and preventing diseases. Among the micronutrients we have the vitamins and minerals.
Vitamins
Vitamins are organic compounds which play roles in many bodily processes:
Vitamin A: necessary for vision, immune function, and healthy skin.
Vitamin C: This helps your body produce collagen and also boosts the immune system and acts as an antioxidant.
Vitamin D: Necessary for bones, the immune system, and your mood.
Vitamin B: Helps create energy, develop red blood cells, and supports the nervous system.
In general, a well-balanced diet that includes a variety of fruits, vegetables, grains, and fortified products will provide adequate vitamins for most individuals.
Minerals
Minerals – inorganic substances that have structural and regulatory functions:
Calcium: Needed for healthy bones and teeth, nerve function and muscles.
Iron: Necessary for carrying oxygen throughout the body and supporting the metabolism of energy.
Magnesium: Needed for muscle and nerve function, as well as energy production.
Potassium: Supports healthy fluids, nerve signals, and heart activity.
Micronutrients are vital, as they can lead to fatigue, poor immune function and other health problems if you’re deficient, and they play an important role in a healthy diet.
