Nutrition Basics

Understand the fundamentals of nutrition science. Learn how macronutrients work, how calories are calculated, and the science behind food energy.

1
Article
10+
Min Read Time
100%
Science-Based

Nutrition Fundamentals

Master the science behind calories and macronutrients

Jan 28, 2025 10 min

What Is the 4-4-9 Rule?

The fundamental principle behind calorie counting. Learn why protein and carbs provide 4 calories per gram while fat provides 9.

Read Article

Understanding Macronutrients

Protein

4 calories per gram. Essential for muscle building, repair, and maintaining lean body mass. Aim for 0.8-1g per pound of body weight.

Carbohydrates

4 calories per gram. Your body's preferred energy source. Choose complex carbs from whole grains, fruits, and vegetables.

Fats

9 calories per gram. Essential for hormone production and nutrient absorption. Focus on healthy fats from nuts, fish, and olive oil.

Track Your Macros Easily

Use Caloringo to automatically track your protein, carbs, and fats. Just snap a photo of your meal and get instant macro breakdowns.

Download Free