Gluten: Should You Be Eating It? What Matt Damon’s Diet Can Teach Us

What if one of the foods you eat every day is making you feel worse—and you don't even realize it?

That’s essentially what Matt Damon says happened to him while preparing for The Odyssey. At 55, Damon eliminated gluten while following an intense training and nutrition program for the role. He dropped to 167 pounds—down from his typical 185–200—and later said that cutting out gluten “changed my life” and made him feel significantly better.

But before you throw the bread away, there's an important distinction:

Gluten isn't inherently unhealthy.

So, What Exactly Is Gluten?

Gluten is a group of proteins naturally found in wheat, barley and rye. That means it's hiding in many familiar foods: bread, pasta, cereals, crackers, baked goods and most traditional beer. It can also show up unexpectedly in sauces, processed foods and other packaged products.

For most people, gluten isn't a problem.

For others, it can be.

Three Very Different Gluten Problems

Celiac disease is an autoimmune condition in which gluten triggers an immune response that damages the small intestine. People with celiac disease need to avoid gluten completely.

Wheat allergy is different. It's an allergic reaction to wheat and can cause symptoms such as hives, digestive problems or breathing difficulties.

Then there's non-celiac gluten sensitivity, where some people experience symptoms such as bloating, abdominal discomfort, fatigue or brain fog after consuming gluten, despite not having celiac disease.

That's where individual experience becomes important.

Could Gluten Be Affecting You?

If you regularly experience bloating, abdominal discomfort, diarrhea, unexplained fatigue, brain fog or other symptoms after eating wheat-based foods, don't simply assume gluten is the culprit.

Start with your doctor.

If celiac disease is a possibility, get tested before eliminating gluten. Going gluten-free beforehand can interfere with testing and make an accurate diagnosis more difficult.

What Can You Eat Instead?

Going gluten-free doesn't mean living on expensive gluten-free cookies and bread.

Build meals around naturally gluten-free foods:

• Protein: Eggs, chicken, fish, beef and beans

• Vegetables: Leafy greens, broccoli, peppers and other vegetables

• Fruit: Berries, apples, oranges and bananas

• Whole-food carbohydrates: Potatoes, sweet potatoes, rice, quinoa and corn

• Healthy fats: Avocado, nuts, seeds and olive oil

If you do need to avoid gluten, look for certified gluten-free products and pay attention to cross-contact, particularly if you have celiac disease.

One final point: gluten-free doesn't automatically mean healthy. Many gluten-free packaged foods can be highly processed and may contain less fiber and certain nutrients than their whole-grain counterparts.

Damon's experience is interesting—not because everyone should copy his diet, but because it highlights a bigger longevity lesson:

Pay attention to how your body responds to what you eat.

Your best diet isn't necessarily the one trending on social media. It's the one that provides the nutrients you need, supports your health, and makes you feel and function your best.

The longevity lesson: Don't fear gluten—but don't ignore your body's signals either.

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