How I lost 10lbs without calorie counting
I leveraged protein and lost weight
I lost 10lbs without calorie counting.
Two major contributing factors: protein and sunlight.1
Animals in the wild don’t calorie count. Yet they’re never fat in an unhealthy manner. Humans obsess over calories. We struggle, suffer, use willpower. And still gain weight.
What do wild animals know about eating that we don’t?
May the Protein Be With You
The answer lies in the "Protein Leverage Hypothesis." It was developed by David Raubenheimer and Stephen Simpson, authors of "Eat Like the Animals: What Nature Teaches Us About the Science of Healthy Eating."
Animals, including humans, have evolved separate appetites for protein, carbs, fat, sodium, and calcium. This is the big five that signals a nutritionally balanced diet.
But one nutrient sits above the rest: protein.
Protein is the primary lever for appetite regulation.
Our body prioritizes eating a target amount of protein. It’s our gauge for recognizing whether we’re full or not. Here’s how it works:
If we under consume our protein target, we don’t feel full. So, our body goes searching for protein in the other nutrients, mainly carbs and fats.
But carbs and fats are low in protein. So we have to eat a lot of them to make up the difference. That means overshooting on calories.
For example, if your protein target is 15%, but you only consume 10%, your body will try to find that missing 5% in carbs and fat. Since those are protein-poor, you'll overconsume them trying to close the gap. That's how overeating happens: not from a lack of willpower, but from a protein shortfall.
When protein is high in the diet, the opposite happens. We naturally eat less because our appetite is satisfied sooner.
This applies to herbivores as well. Horses and cows don’t just eat any grass, they seek forage that is protein-rich.
Why eat carbs and fats at all then? Because they are the primary fuels for energy.
Why does our body index on protein?
Because we don’t store it. We can store energy from carbs and fats. But protein? We need to refuel it almost every day. Indexing on protein is our body’s way of making sure we get what we can’t bank.
What is your target protein?
Protein requirements vary by age, gender, muscle, and activity level. But the general pattern:
Children and adolescents: ~15% protein from daily calories. Essential for growth.
Young adults: ~18% protein. To support growth and reproduction.
Pregnant and breastfeeding: ~20% protein. More protein to support the baby.
Mature adults (30s): ~17% protein.
Middle age (40-60s): ~15% protein. Protein targets can fall, which may promote healthy aging and potentially slow aging. This is where the association between low protein and longer lifespan fits in.
Older age (65+): ~20% protein. Protein needs rise again because the body becomes less efficient at retaining it. The drain gets increasingly leaky.
How Small Protein Shortfalls Drive Obesity
Ultra-processed foods are a protein leverage trap. They’re low in protein, high in carbs and fats. So you need to eat a lot of them to hit your protein target, massively overshooting on calories in the process.
Even a 2% protein shortfall can set off a vicious cycle. Your body hunts for that missing protein in carbs and fats. But since those are protein-poor, you eat more of them to compensate. More calories → weight gain → now your larger body needs even more food → and if you’re still eating the same low-protein diet, the cycle repeats.
Practical take-away to lose weight
I’ve tried calorie counting and fad diets and they didn’t work for me. When it comes to food, this is what I did that helped me lose 10lbs:
Make protein your lever: If you’re craving carbs, eat protein first. When I do this, I notice that I’m fuller and my hunger for sugary carbs goes away. It’s our body telling us to meet our protein target.
Don't skip carbs and fats entirely: You need them for energy. Just make sure protein comes first.
May the Protein be with you,
Browse my Health on Easy Mode setup across 15+ categories (non-toxic kitchen, clean water, skincare, diagnostics, lighting).
Follow me on X @aasthajs & Instagram @aasthajs as I parse through the snake-oil in longevity.
Related Posts:
I will talk about the benefits of sunlight for weight loss in another post.