calories – Calicount

Calories 🔥

Calories are the units of energy our bodies use to fuel every movement, thought, and process. While they’re often associated with weight gain or loss, calories are fundamentally about energy balance — how much energy we take in versus how much we expend.

Not all calories are created equal: the type of food you eat affects how your body uses that energy, how full you feel, and how nutrients support overall health. Here’s a closer look at some common foods and the energy they provide.

Body Mass Index (BMI)

Formula:
BMI = weight ÷ height²

Metric: weight in kilograms (kg), height in meters (m)
Imperial: BMI = (weight in pounds ÷ height in inches²) × 703

Healthy range: 18.5–24.9 → considered “normal/healthy”

Example (Metric):

Height: 1.70 m (5’7”)
Lower healthy weight ≈ 18.5 × (1.7²) ≈ 53 kg (117 lb)
Upper healthy weight ≈ 24.9 × (1.7²) ≈ 72 kg (159 lb)

⚠️ Limitation: BMI doesn’t distinguish muscle from fat, so very muscular people may appear “overweight” despite being healthy.

Hamwi / Robinson Formula
(for quick estimates)

Men:

Metric: 48 kg + 2.7 kg per inch (2.2 kg per cm) over 5’0” (152 cm)
Imperial: 105.8 lb + 6 lb per inch over 5’0”

Women:

Metric: 45.5 kg + 2.2 kg per inch (1.9 kg per cm) over 5’0” (152 cm)
Imperial: 100 lb + 4.8 lb per inch over 5’0”

Note: This gives a rough “ideal” weight, mostly historical; it doesn’t account for body composition, age, or lifestyle.

Men & Women

On average, adult men burn about 2,400–2,800 kcal per day, while adult women burn around 2,000–2,400 kcal, depending on activity.

1 kilo - 2,2 pounds

Losing 1 kilogram (or 2,2 lbs) of body fat ≈ 7,700 kcal. That’s roughly the energy stored in fat tissue. Small daily deficits add up.

Running

Running burns about twice as many calories per km as walking. Because more muscles work harder, even though distance stays the same.

Muscles

Muscle tissue burns more calories at rest than fat. More muscle slightly increases your daily calorie needs—even when inactive.

Digestion

Digestion itself costs calories (Thermic Effect of Food). Protein burns the most: 20–30% of its calories are used just to digest it.

NEAT

NEAT (Non-Exercise Activity Thermogenesis) matters. A lot fidgeting, pacing, cleaning, and daily movement can burn hundreds of kcal per day without formal exercise.

Walking

Walking burns ~0.5 kcal per kg body weight per km (flat ground). Example: a 70 kg person burns about 35 kcal per km. 1 hour of brisk walking ≈ the calories in a small chocolate bar

Sleeping

You burn calories even while sleeping. A typical adult burns 50–70 kcal per hour just to keep organs functioning.

Cold

Cold environments increase calorie burn. Your body uses extra energy to maintain core temperature.

Fat Loss

You can’t “target” fat loss The body decides where fat comes off first, not the exercise you do.

Types of food

High-volume, low-calorie foods help control hunger. Foods with lots of water and fiber (vegetables, soups, fruit) stretch the stomach with fewer calories.