Nutrition

TDEE and Calorie Deficits Explained

Learn how total daily energy expenditure is estimated with Mifflin-St Jeor, how activity multipliers work, and how to set a safe calorie deficit for weight loss.

What Are Macronutrients?

Macronutrients—protein, carbohydrates, and fat—are the calorie-providing nutrients your body needs in large amounts daily.

How TDEE Is Calculated

Total daily energy expenditure (TDEE) estimates calories burned per day from basal metabolism, activity, and food digestion.

Protein Intake Guidelines

Protein intake guidelines vary by body weight, activity level, and goals—from baseline health to muscle gain and fat loss.

BMR vs TDEE Explained

BMR is calories burned at rest; TDEE is total daily burn including activity, movement, and digestion.

Body metrics

BMI, ideal weight, and body composition estimates.

Fitness

Heart rate zones and protein intake helpers.