The Simple Science Most People Overlook
Most people think fat loss comes down to one thing:
Eat less. Move more.
And while that’s partially true, it misses something important.
Not all calories are processed the same way by your body.
Some foods actually require more energy to digest, which means your body burns more calories just processing them.
That’s where protein stands out.
What Is TEF (And Why It Matters)?
TEF stands for Thermic Effect of Food.
It’s the number of calories your body burns to:
• Digest food
• Absorb nutrients
• Process what you eat
In simple terms:
You burn calories just by eating.
But here’s the key:
Different macronutrients have different TEF values.
Protein vs Carbs vs Fat
Here’s how they compare:
• Protein: ~20–30% of calories burned during digestion
• Carbohydrates: ~5–10%
• Fat: ~0–3%
That means if you eat 100 calories of protein, your body may use 20–30 of those calories just to process it.
With fat, it might only use 0–3.
Protein literally costs your body more energy to use.
Why This Matters for Fat Loss
This doesn’t mean protein is magic.
But it does mean:
Higher protein diets naturally increase total daily calorie burn.
Not through extreme workouts.
Not through hacks.
Just through normal digestion.
Over time, that adds up.
Protein Also Helps You Stay Full
Another major benefit:
Protein increases satiety.
Meaning:
• You feel fuller longer
• You’re less likely to snack
• You naturally eat fewer calories
This is why people who prioritize protein often find fat loss easier to maintain.
Not because they’re trying harder.
Because their body is working with them instead of against them.
Protein Protects Muscle (This Is Huge)
When people lose weight without enough protein, they often lose:
• Fat
• And muscle
That’s a problem.
Muscle:
• Supports metabolism
• Improves strength
• Helps maintain long-term results
Protein helps preserve lean muscle while you lose fat.
Which means you don’t just get lighter.
You get stronger and more capable.
Most People Undereat Protein
Here’s the reality:
Most beginners:
• Overeat carbs
• Undereat protein
• And don’t realize it
They focus on calories but ignore composition.
At SOLDIERFIT, this is why nutrition isn’t about extremes — it’s about simple adjustments that actually support training and recovery.
How Much Protein Do You Actually Need?
A simple starting point:
0.7–1 gram of protein per pound of body weight
Example:
• 150 lbs → ~105–150g protein per day
You don’t need perfection.
You need consistency.
Easy Ways to Add More Protein
Keep it simple:
• Eggs or egg whites
• Chicken, turkey, lean beef
• Greek yogurt
• Protein shakes
• Fish
• Cottage cheese
You don’t need complicated meal plans.
You just need to start prioritizing it.
The Biggest Mistake People Make
They focus on:
• Cutting calories
• Removing foods
• Trying to be perfect
Instead of:
Building meals that actually support their goals
Protein is one of the easiest ways to improve:
• Fat loss
• Recovery
• Energy
• Consistency
Final Takeaway
If you’re trying to lose weight and not seeing results, it may not just be how much you’re eating.
It may be what you’re eating.
Protein:
• Helps you burn more calories through digestion
• Keeps you full
• Protects muscle
• Supports long-term results
You don’t need extremes.
You need better structure.
And prioritizing protein is one of the simplest places to start.