Three nutrients, different jobs
Build & repair
Protein supports building and repairing tissues. Beans, lentils, tofu, eggs, fish, chicken and yoghurt are everyday options.
Fuel for activity
Carbohydrate is a main energy source. It includes starch, sugars and fibre. Whole grains, potatoes, fruit, vegetables and legumes can all contribute.
Energy & absorption
Fat supplies energy and helps absorb vitamins A, D, E and K. Unsaturated sources include nuts, seeds, avocado, plant oils and oily fish.
Sources: Health Canada: protein · carbohydrates · fats
Foods are more than one macro
Beans provide carbohydrate, fibre and protein. Nuts provide fat and some protein. A food does not need to fit into only one box, and meeting a macro total does not describe the full quality or variety of your diet.
Start with a balanced meal pattern: vegetables or fruit, whole grains and protein foods. Choose plant proteins more often, and include foods you enjoy. Portions still need to reflect your own needs.
Sources: Canada’s food guide: the plate
What 4, 4 and 9 mean
Protein and most carbohydrate supply roughly 4 calories per gram; fat roughly 9. An imaginary meal with 20 g protein, 40 g carbohydrate and 10 g fat gives approximately 330 calories: 80 + 160 + 90. This is an arithmetic example, not a meal recommendation.
Fibre, food-specific energy factors and rounding can make an actual label differ from that estimate. You do not need to reproduce the arithmetic at every meal.
Do you need personal macro targets?
A universal percentage split would miss your preferences, activity and health context. The generic Built By White guides use ordinary meal ideas and vegetarian swaps without assigning individual gram targets.
Individual targets, when appropriate, need a competent assessment. A higher-protein label alone is not a complete eating plan, and increasing protein should not crowd out food variety or enough energy.
General education for adults. This article does not set individual calorie or macro targets, diagnose a condition or replace individual assessment. Your needs may differ with health conditions, medicines, pregnancy or a history of disordered eating.