by Carolane Fortin (trainer at PRIME Personal Training)
Understanding the building blocks of our diet is essential for making informed choices about nutrition and overall health. At the core of every meal are three vital macronutrients: proteins, carbohydrates, and fats. Each plays a unique and crucial role in fueling our bodies, supporting growth, repair, and daily functions. Whether you’re aiming to build muscle, improve digestion, boost energy, or maintain hormonal balance, knowing why these macronutrients matter—and where to find them—can empower you to create a balanced, satisfying diet. Let’s explore the importance of proteins, carbs, and fats, along with some delicious sources to help you meet your nutritional goals.
Protein
But why?
- Building and repairing tissues such as muscle, protein is essential for building and repairing muscles. Protein also helps the body produce collagen, which helps with bone and connective tissue health.
- Supporting immune system function with antibody production and supporting immune cell function
- While Carbs and fats are the primary sources of energy, protein plays a role in various metabolic processes, helping the body convert food into energy
- Fluid balance: protein helps maintain proper fluid balance, preventing dehydration.
- Protein is involved in hormone production and regulation of hormones, which plays a crucial role in various bodily functions. It can also help with WEIGHT LOSS by boosting metabolism and increasing fat burning
Fun protein source
 Flank steak : 100g (28g of protein) |  chicken: 100g(31g of protein) |  Tofu: 100g(12g of protein) |  Protein powder: 31g(24-27g of protein) |
 Lowfat cheese: 30g(10g of protein) |  Greek yogurt: 100g(10g of protein) |  Cottage cheese: 50g(6g of protein) |  Fish: 100g(20-26g of protein) |
Carbs
But why?
- Carbohydrates are the main source of energy for your body. When you eat carbs, your body breaks it down into glucose (sugar) and then it uses it as fuel for daily functions such as brain functions, muscles and digestion.
- Carbohydrates also support brain functions. The brain on its own uses about 20% of your daily energy to KEEP YOU ALIVE! And you guest it, most of it comes from glucose.
- Carbs also help with digestion, for example, fiber helps regulate digestion and keep your bowel movements healthy. No carbs = no good digestion.
- Carbs also help with exercise performance. Muscles store glucose (broken down carbs) as glycogen to allow the body better endurance and performance of your muscles.
Carbohydrate sources
 White rice: 100g (34g of carbs) |  Brown rice: 100g(25g of carbs) |  quinoa: 100g(22g of carbs) |  Pasta: 100g(66g of carbs) |
 Whole wheat bagel:(50g of carbs) |  potatoes: 100g(18g of carbs) |  Sweet potatoes: 100g(18g of protein) |  English muffin: (23g of carbs) |
Fats
But why?
- Fats are the most concentrated source of energy in your diet. Although carbs are usually the first choice, fats are often used by your body for long-term energy, especially during low intensity or endurance activities (AKA CARDIO!!)
- Some of the most important nutrients for your body are fat soluble. This means your body needs fat to absorb them properly. Without a healthy amount of fat your body can’t make the most use out of those vitamins!
- Fats are SOOOOO important for every cell in your body. It helps protect the membranes of each cell and control what goes in and out of them.
- Fats are also very important for hormonal production. Including vital hormones like estrogen and testosterone. Healthy fat intake helps keep your hormonal systems balanced.
- Fats are also very important for brain function as nearly 60% is made up of fat. Healthy fats like omega-3s are necessary for good brain function. Fats support cognitive function, mood regulation, and may help reduce the risk of neurodegenerative diseases.
- Fat makes food more satisfying and helps you feel full longer after eating. It also enhances the flavor and texture of food, which can support a more enjoyable and sustainable way of eating.
Fats sources
 avocado: 50g (7g of fats) |  cheese: 30g(9g of fats) |  salmon: 100g(8g of fats) |  Nut butter: 30g(17g of fats) |
 olive oil: 30g(27f of fats) |  eggs: 1 unit(5g of fats) |  nuts/seeds: 50g(20g of fats) |  Dark chocolate: 30g(12g of fats) |
By understanding the roles of proteins, carbohydrates, and fats, you can tailor your diet to support your lifestyle, health, and fitness objectives. From repairing tissues and fueling your brain with carbs to supporting hormone production and maintaining cellular health through fats, these macronutrients are indispensable. Incorporating a variety of nutrient-rich sources like lean meats, whole grains, healthy oils, and plant-based options ensures a well-rounded diet that keeps your body functioning optimally. Remember, balance is key—embracing the power of these macronutrients can lead to a healthier, more energized you.
Want help figuring out what fitness and nutrition plan is right for you? Contact us today to set up a consultation with one of our trainers!
Call 613 601 7037 or email info@primepersonaltraining.ca