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Macronutrients & Micronutrients Reference Cheat Sheet
A printable reference covering carbohydrates, proteins, fats, calories, vitamins, minerals, fiber, and hydration for grades 6-12.
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Macronutrients and micronutrients help the body grow, repair, move, think, and stay healthy. This cheat sheet summarizes the nutrients students see on food labels and in health class. It helps students compare foods, understand energy needs, and make balanced choices without memorizing long lists. The goal is to connect nutrition facts to real daily eating patterns. Macronutrients include carbohydrates, proteins, and fats, which provide energy and building materials for the body. Carbohydrates and proteins provide 4 calories per gram, while fats provide 9 calories per gram. Micronutrients include vitamins and minerals, which do not provide calories but support important body processes. Water and fiber are also essential for digestion, hydration, and overall health.
Key Facts
- Carbohydrates provide 4 calories per gram and are the body's main quick energy source.
- Protein provides 4 calories per gram and helps build and repair muscles, skin, organs, enzymes, and hormones.
- Fat provides 9 calories per gram and helps with long-term energy storage, cell membranes, brain health, and absorption of vitamins A, D, E, and K.
- Total calories from a food can be estimated with calories = 4 x grams carbohydrate + 4 x grams protein + 9 x grams fat.
- Fiber is a type of carbohydrate that the body does not fully digest, and it supports digestion, fullness, and steadier blood sugar.
- Vitamins are organic micronutrients needed in small amounts, and minerals are inorganic micronutrients such as calcium, iron, potassium, and sodium.
- A balanced meal often includes a mix of carbohydrate-rich foods, protein foods, healthy fats, fruits or vegetables, and water.
- Nutrient needs vary by age, body size, activity level, growth, health conditions, and overall eating pattern.
Vocabulary
- Macronutrient
- A nutrient needed in larger amounts that provides energy or building materials, including carbohydrates, proteins, and fats.
- Micronutrient
- A vitamin or mineral needed in small amounts to support body functions such as immunity, bone health, and energy use.
- Calorie
- A unit of energy that describes how much energy the body can get from food and drinks.
- Fiber
- A mostly indigestible carbohydrate found in plant foods that supports digestion and helps you feel full.
- Complete Protein
- A protein source that contains all nine essential amino acids the body must get from food.
- Hydration
- The process of maintaining enough water in the body for temperature control, circulation, digestion, and concentration.
Common Mistakes to Avoid
- Calling all carbohydrates unhealthy is wrong because whole grains, fruits, vegetables, beans, and dairy can provide energy, fiber, vitamins, and minerals.
- Avoiding all fats is wrong because healthy fats are needed for brain function, hormone production, cell membranes, and absorption of vitamins A, D, E, and K.
- Counting only calories and ignoring nutrients is wrong because two foods with similar calories can have very different amounts of fiber, protein, vitamins, minerals, sodium, and added sugar.
- Assuming vitamins and minerals provide energy is wrong because micronutrients do not have calories, but they help the body use energy and perform essential functions.
- Using one meal or snack to judge an entire diet is wrong because nutrition is best understood as a pattern across the whole day and week.
Practice Questions
- 1 A snack has 30 g of carbohydrate, 6 g of protein, and 8 g of fat. Estimate its calories using calories = 4 x grams carbohydrate + 4 x grams protein + 9 x grams fat.
- 2 A meal contains 18 g of protein. How many calories come from protein?
- 3 A food label lists 12 g of fat. How many calories come from fat?
- 4 A student says a food is healthy only because it is low in calories. Explain why calories alone are not enough to judge the nutrition quality of a food.