test-Prebiotic Supplements  &  Digestive Enzymes
Digestive Health
Prebiotic Supplements & Digestive Enzymes
Lindsey Toth, MS, RD • April 11, 2021

Supplements for Digestive Health

How often do you think about the health of your gut? If you wait until you have a digestive disturbance to think about it, there’s a better way. Optimizing your gut health will not only improve digestion and help eliminate digestive concerns, it will also help you get the most nutrition out of everything you eat, which can help you be healthier overall.

Next to probiotics, two of your greatest allies for keeping your gut healthy and your digestion optimized are prebiotic supplements and digestive enzymes. Here's the difference between the two and how they help.

The Flora in Your Gut

Before we get into prebiotics, let's talk about the microbiome of your gut. Trillions of bacteria live in your digestive tract—researchers estimate about 1 to 2 pounds worth of bacteria is in your digestive tract at any given moment.1 There are both good and bad bacteria there, and the goal is to make sure the good outweighs the bad for optimal microbiome health.

Eating a diet rich in real foods, along with some fermented probiotic foods, is a great way to help maintain that balance. You can also help the good microbes flourish by taking probiotics supplements, prebiotics, or both. If you follow our blog, you may have read about probiotics in Trust Your Gut Health: Build a Healthier Gut with Probiotics. Probiotic supplements help reinforce good gut flora, delivering beneficial microbes right where you need them most. But what about prebiotics?

What are Prebiotics vs. Probiotics?

We often compare probiotics and prebiotics to a garden. Adding probiotics is like adding more plants to your garden, and adding prebiotics is like fertilizing your garden. Prebiotics are a type of dietary fiber that helps feed and stimulate those good microbes.2

Not all dietary fiber makes an effective prebiotic, although high intakes of dietary fiber in general offer many other benefits, especially for the heart and digestive system, and it can help with weight management.2 To be classified as a prebiotic, dietary fiber must be able to resist breaking down and being absorbed in the upper gastrointestinal tract so that it can reach the intestines, then it must selectively stimulate only the good microbes there.2

Foods naturally high in prebiotic fiber include leeks, asparagus, chicory, Jerusalem artichokes, garlic, onions, wheat, oats, and soybeans. But if prebiotic foods aren't on your menu every day, which is often the case with modern diets, a prebiotic supplement can help. You can also get the best of both in a combined probiotic supplement with prebiotic fiber.

Prebiotic Benefits

Prebiotics benefit your body by giving the good bacteria in your gut the nourishment it needs to thrive, which can support other health improvements too. A healthier gut means better digestion, nutrient absorption and fewer gastric disruptions. But the benefits don't stop there, because improved nutrient absorption means your entire body gets more of what it needs for health and wellbeing.

Some of the benefits of prebiotics include:

  • Boosted immune health3
  • Easier digestion & fewer digestive concerns3
  • Improved nutrient absorption & metabolic health4
  • Stronger bones due to improved calcium & magnesium absorption4
  • Less stress and better sleep due to improved absorption of brain-supporting nutrition5

What are Digestive Enzymes?

An enzyme is a type of protein within cells that create chemical reactions.6 The body makes many types of enzymes that help perform different tasks like removing toxins from the body, building muscle, digesting food and more. Digestive enzymes are essential because they help turn the food you eat into molecules your body can use for all its necessary functions.

There are three primary enzymes related to digestion: amylase, protease and lipase.6 Amylase, produced in salivary glands, the pancreas and the small intestine, breaks down carbs and starch. Protease (a type of enzyme that includes pepsin and trypsin) is made in the stomach, pancreases and small intestine and helps digest proteins.6,7 And lipase, also made in the pancreas and small intestine, breaks down fats and oils.

There are other digestive enzymes too—including lactase, which helps break down milk sugar or lactose—but the three above are key players.7

Digestive Enzyme Health

Several factors can impact our digestive enzymes. The food choices you make can either help or hinder enzyme production, and certain foods (mostly fruits and vegetables) actually contain some digestive enzymes.6 Other foods and beverages (including alcoholic beverages) can alter the pH of the stomach or intestines and reduce digestive enzymes. Also, some health concerns and prescription medicines, like antibiotics, can reduce digestive enzymes.6

When the enzymes in your body are affected, in the long term your health can be affected too. Sticking to a whole food diet focused heavily on real, plant-based ingredients is ideal for supporting healthy digestive enzymes, but if your digestive enzyme production isn’t as good as it should be, digestive enzyme supplements may help.

What Do Digestive Enzyme Supplements Do?

Digestive enzyme supplements help reinforce the enzymes in your body to improve digestion. You can choose specific enzymes to support digestion of particular foods.

For example, if you have trouble digesting dairy, you might consider taking a digestive enzyme supplement that contains lactase, like Swanson Ultra n-zimes Dairy, formulated specifically for those with difficulty digesting dairy products.

If you want to help boost your body’s protein digestion, try a digestive enzyme supplement with protease, like Swanson Ultra BioCore Optimum Complete, which is especially popular among people on a high-protein diet.

Other digestive enzyme supplements work double duty to help maintain gastric pH, like Betaine HCI Hydrochloric Acid, which contains pH-promoting betaine hydrochloride and the digestive enzyme pepsin.

A Healthier Gut Means a Healthier You

Whether you reach for probiotic supplements, prebiotic supplements, digestive enzymes, all three,or simply refocus your diet and lifestyle to nourish your gut health, it’s well worth the effort. Improving your gut health can have long-lasting benefits that affect the health of your entire body, helping you derive more nutrients from your food, have better immune health, and much more.

If you’re looking for ways to make healthy changes to your diet, why not start with delicious gummies in Swanson's Probiotic + Prebiotic formula? Each vegetarian, gluten-free and non-GMO blackberry-flavored gummy supports healthy microbial balance with 1.5 billion live probiotic cells and 40mg of prebiotics.

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Lindsey Bristol, Swanson Health Products



About Lindsey Toth, MS, RD

Lindsey is a nationally recognized registered dietitian and nutritionist with a soft spot for pie. She empowers people to take charge of their health by finding the balance between the pleasure and nourishment in food. Her philosophy is that you should take care of your body because it’s the only permanent home you have. It’s what inspired her to pursue a career in nutrition.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.


1. 6 Surprising Facts About the Microbes Living in Your Gut. HealthLine. Read source

2. Fiber and Prebiotics. Nutrients. Read source

3. The 19 Best Prebiotic Foods. HealthLine. Read source

4. Effects of Gut Microbes. National Library of Medicine. Read source

5. Prebiotics. Medical News Today. Read source

6. Why Are Enzymes Important? HealthLine. Read source

7. Digestive Enzyme Supplements. HealthLine. Read source