Digestive enzymes and probiotics are both called "gut health" supplements, and they are often mentioned in the same breath. But they are very different things. At the simplest level, enzymes are proteins that break food down, while probiotics are live bacteria that support the community living in your gut. Here is how each works, how they differ, and why they can make a good team.
What are digestive enzymes?
Digestive enzymes are proteins your body makes to break food into pieces small enough to absorb. They are produced along your digestive tract, in your mouth, stomach, pancreas and small intestine, and each type works on a particular kind of molecule. The main ones:
- Amylase breaks down starches into sugars.
- Protease breaks down proteins into smaller peptides and amino acids.
- Lipase breaks down fats (triglycerides) into fatty acids and monoglycerides.
- Lactase breaks down lactose, the sugar in milk, into glucose and galactose. It is produced by cells in the lining of the small intestine, and many adults make less of it after infancy.
One notable gap: humans do not make enzymes that can digest most dietary fiber. Fibers and prebiotics resist digestion in the small intestine and reach the colon, where they are fermented by gut bacteria. That is one place enzymes and bacteria divide the work.
When your own enzymes cannot keep up with a meal, the result can be gas, bloating or discomfort. Lactose is the clearest example: using lactase products can help some people manage their symptoms. Learn more in What are Digestive Enzymes?
What are probiotics?
Probiotics are live microorganisms that, when taken in adequate amounts, provide a health benefit. They work quite differently from enzymes. Rather than breaking down a specific nutrient, they join the tens of trillions of microbes in your gut and support that community, for example by competing with less friendly microbes and interacting with immune cells in the gut lining.
The most common probiotics come from the Lactobacillus and Bifidobacterium groups, and different types of probiotics may have different effects. Read more in What are Probiotics?
What is the difference between digestive enzymes and probiotics?
| Feature | Digestive enzymes | Probiotics |
|---|---|---|
| What they are | Proteins (not alive) | Live microorganisms |
| Main job | Break down specific nutrients in food | Support a healthy community of gut bacteria |
| Where they mainly work | Stomach and small intestine | Mostly the large intestine |
| How fast you might notice them | With the meal you take them with | Usually over days to weeks of daily use |
| Best taken | Just before a meal | With a meal, at the same time each day |
Can you take digestive enzymes and probiotics together?
Yes. Because they do different jobs, there is no conflict in taking both, and they can complement each other.
Probiotics make enzymes of their own
Some probiotic bacteria produce enzymes that help break down food. Many lactic acid bacteria, for example, can break down lactose, and a systematic review of 15 randomized trials found an overall positive relationship between probiotics and lactose intolerance symptoms. In a lab study, a supplement combining digestive enzymes and probiotics broke down 44% to 96% of the lactose in milk and yogurt.
They work at different points in digestion
Enzymes help with the breakdown of a meal in your stomach and small intestine. Probiotics support the bacteria further down, in the colon, where fiber is fermented. Together they cover more of the digestive process than either alone.
Which should you choose?
It depends on what you notice. If you feel uncomfortable, bloated or overly full after particular meals, a digestive enzyme taken before eating may help. Break It Down combines 15 plant-based enzymes with 1 billion probiotics in one capsule, to help ease occasional bloating and discomfort after meals. See How & When to Take Digestive Enzymes for timing.
If you want everyday support for your gut bacteria, a daily probiotic is the better fit. Trust Your Gut Probiotic + Prebiotic Daily Essential is vegan and provides 16 billion CFU from 6 acid-resistant strains, plus organic prebiotics. Many people take both.
Persistent bloating, pain or changes in bowel habits deserve a conversation with your doctor; our article Why Do I Feel Bloated? covers common causes.
