Enzymes facilitate countless daily reactions in your body to keep you alive and thriving. They perform many functions. Digestive enzymes specifically work to break down the food you eat. Everyone produces enzymes naturally, but some don't make enough due to poor diet, chronic conditions, stress, or age. Without enough enzymes, your body can't digest food properly, leading to bloating, gas, constipation, diarrhea, or other "GI" related symptoms.