The nutrition world is full of conflicting advice, fad diets, and people profiting from your confusion. This guide cuts through all of it.
Here's what decades of research actually supports.
The Things Almost Everyone Agrees On
Despite the debates about keto, carnivore, vegan, and Mediterranean diets, researchers agree on the basics:
- Eat mostly whole foods. The less processing, the better.
- Eat plenty of vegetables. No credible study has shown vegetables to be harmful.
- Limit ultra-processed foods. Linked to obesity, metabolic disease, and poor gut health.
- Protein is essential. Most people eat too little of it.
- Hydration matters more than most people realize.
Protein: The Most Important Macronutrient
Protein is the building block of muscle, the most satiating macronutrient, and the hardest one to overeat. Most nutrition experts agree: eat more of it.
Target: 0.7-1g per pound of bodyweight daily.
Best sources: eggs, chicken breast, Greek yogurt, cottage cheese, fish, lentils, tempeh.
What to Actually Minimize
| Category | Examples | Why |
|---|---|---|
| Ultra-processed | Packaged snacks, fast food | Engineered to override satiety |
| Added sugar | Soda, candy, most cereals | Empty calories, metabolic harm |
| Refined grains | White bread, most pasta | Blood sugar spikes |
| Seed oils in excess | Fried food, many snacks | High omega-6, inflammatory |
The Simplest Eating Framework
If you want one rule: Eat foods that look like what they were when they were grown or raised.
An apple looks like an apple. A chicken breast looks like a chicken breast. A bag of chips doesn't look like anything that existed in nature.
On Popular Diets
- Keto: Works for weight loss and blood sugar. Hard to sustain. Not superior long-term.
- Intermittent fasting: Effective for caloric control. Benefits come from eating less, not the fast itself.
- Vegan: Requires careful supplementation (B12, D3, omega-3, iron, zinc). Can be very healthy when done right.
- Mediterranean: The most consistently research-supported dietary pattern for longevity.
One Practical Change to Start Today
Increase your protein intake at breakfast. Replace cereal or toast with eggs, Greek yogurt, or a protein shake. Higher-protein breakfasts reduce total daily calorie intake without feeling like a diet.
That one change, consistently applied, produces better results than any elimination diet.
Simple beats perfect. Every time.
