It’s been said that opinions are like butt holes—everyone has one, and most of them stink.
Ask five people about nutrition, and you’ll probably get five totally different answers—“Don’t eat carbs!” “Fast on Thursdays!” “Go vegan!” “Have you tried the South Beach Diet?”
People mean well, but the reality is that there’s just too much conflicting information out there. That’s the point of this post: to cut through the noise and lay down a simple foundation for understanding the science behind nutrition.
When we talk about nutrition, most people care for one of three reasons:
- Fat loss
- Strength gain
- Overall health
The good news? The same foundational principles apply to all three.
Calories Matter (Sorry, Aunt Susan)
Let’s start here: calories matter.
Even though Aunt Susan might swear that “counting calories is bad,” that advice usually comes from a place of frustration or an unhealthy relationship with food. People don’t like feeling restricted—and when restriction doesn’t produce results, resentment follows.
But here’s the truth: if you want results, you need to know how much energy (calories) your body is taking in. Every day your body burns a certain number of calories to stay alive and function.
- Eat more than you burn → gain weight.
- Eat less than you burn → lose weight.
That’s the simple math every effective fat loss or muscle gain plan is built on.
Action Step:
➡️ To lose body fat, multiply your goal body weight by 12.
That’s a great place to start for a small caloric deficit.
The Big Three: Protein, Carbs, and Fats
All calories come from one of three macronutrients: protein, carbohydrates, and fat.
Protein
Protein isn’t just for muscle—it’s vital for recovery, hormones, enzymes, and your immune system. It’s made up of amino acids, some of which your body can’t make on its own. You have to eat them.
Action Step:
➡️ Multiply your goal body weight by 1 to find your daily protein target (in grams).
Carbs and Fats
Both provide energy, but in different ways:
- Carbs = 4 calories per gram
- Fats = 9 calories per gram
This is why people say “fat makes you fat”—it’s just more calorie-dense, not evil. The key is total calories, not one specific macro.
In our experience, hundreds of people have seen huge results simply by tracking calories and protein. Those two alone are the biggest drivers of progress.
Food Quality Still Matters
Once calories and protein are on point, focus on food quality.
Choose whole, minimally processed foods—things that come from the earth or an animal, not a factory.
Aim for:
✅ Animal-based proteins
✅ Fruits and vegetables
✅ Whole, unprocessed carbs
❌ Limit added sugars and ultra-processed junk
Timing: The Advanced Step You Don’t Need (Yet)
Once your calories, protein, and food quality are dialed in, then you can experiment with meal timing. Things like intermittent fasting or cutting off food after 8 PM can help some people, but they’re not magic.
If you’re hitting your calorie and protein goals consistently, meal timing becomes far less important.
Keep It Simple. Stay Consistent.
The basics will always work. The hard part is doing them consistently. Success comes from relentless consistency and boring habits done over and over again.
We help every single member at Grit Athletics through this exact process because nutrition is the real game-changer in the gym.
If you want to go deeper into these principles, check out the full episode of The GRITX Podcast on nutrition.
And if you’re ready for hands-on help, schedule a free chat with one of our coaches to build your own simple, effective nutrition plan.
