How Digestion Controls 70% of Your Immune System.

Your digestive system does far more than break down food — it’s one of the most powerful engines in your entire body. In fact, roughly 70% of your immune system lives in your gut, and when your digestion is working well, your immune response is stronger, your energy production increases, and your whole body functions more efficiently.

When you eat, your body is constantly evaluating what you’ve put on your plate. Every bite you take either supports your health or asks your system to work harder to protect you. Foods that your body digests easily are processed with less effort and more benefit — nutrients are absorbed efficiently, mitochondria generate energy effectively, and your immune system stays responsive.

But when you consume items your body can’t break down well, your system has to work overtime just to manage the stress. Energy that could be fueling your day, supporting immunity, or aiding recovery gets diverted to simply handle the food you ate. Over time, this repeated strain creates more fatigue, more inflammation, and a less resilient immune response.

This is why paying attention to the foods you choose matters so much. Nutrition isn’t just calories or “healthy” labels — it’s about how your unique body responds to what you eat. What your parents or grandparents ate decades ago might not be the best choice for you today. Our bodies change, our environments change, and what works for one person doesn’t always work for another.

So take a moment with every meal to ask: Is this food going to fuel me — or frustrate my digestion? Choose foods your body can use, and you’ll not only feel stronger — you’ll support a more robust immune system and higher energy levels too.