A dietitian breaks down the biggest nutrition myths in fitness.
If you spend enough time in the fitness world, you’ll hear a lot of strong opinions about nutrition.
Carbs are bad. Protein bars are healthy. Energy drinks boost performance. Supplements fix everything.
The problem is that most of those conversations completely miss the point.
Because the biggest factor in nutrition success isn’t the latest supplement or diet trend.
It’s consistency with the basics.
Food First, Supplements Second
There’s a simple rule that should guide almost every nutrition decision.
Food first. Supplements second.
Supplements are exactly what the name implies — something that supplements your diet.
They’re not meant to replace real food.
But for many people, that’s exactly what’s happening.
Protein shakes replace breakfast. Protein bars replace meals.
And over time, real nutrition gets replaced with convenience products.
There’s nothing wrong with supplements when they’re used appropriately.
But most people would see bigger improvements by simply eating more real food.
Another egg. Another serving of meat. Another whole-food meal.
The Carbohydrate Confusion
Carbohydrates have been one of the most demonized nutrients in modern nutrition.
But for people who train regularly — especially those doing high-intensity workouts like CrossFit — carbohydrates are critical.
Your body’s primary fuel source during intense exercise is glycogen, which comes from carbohydrates.
Without enough carbs, performance drops. Recovery slows. Energy levels crash.
And ironically, under-fueling often makes it harder for people to reach the body composition goals they’re chasing.
Carbs aren’t the enemy.
The real issue is usually the type and quantity of food someone is eating overall.
Energy Drinks and the Stress Problem
Energy drinks have become incredibly common in the fitness space.
And while caffeine can provide a temporary boost, relying on stimulants every day can create a bigger problem.
When caffeine intake stacks up — energy drinks, coffee, pre-workouts — it keeps the nervous system in a constant state of stimulation.
Over time, that can contribute to elevated stress hormones, poor sleep, and burnout.
For many people, the real solution isn’t more caffeine.
It’s better sleep, better fueling, and better recovery.
Why Electrolytes Matter
One area that is often overlooked in nutrition conversations is minerals.
Electrolytes like sodium, potassium, and magnesium play a key role in hydration, nerve function, and overall performance.
Athletes who sweat regularly often need more electrolytes than the average person.
In many cases, adding electrolytes can help improve hydration and overall training performance.
Like supplements, though, the foundation should still come from a balanced diet.
The Grocery Store Rule
If you want a simple way to improve your nutrition, start with this rule.
Spend most of your time shopping around the outside of the grocery store.
That’s where you’ll find the foods that make up the foundation of a healthy diet:
- Meat and protein sources
- Fruits and vegetables
- Dairy
- Whole food carbohydrates
The more your meals revolve around those foods, the easier it becomes to build sustainable nutrition habits.
👉 Watch the full podcast episode here.
If you want help building a nutrition plan that supports your training, recovery, and long-term health, the next step is simple.
👉 Book a nutrition consultation here.
