How Digestive Enzymes Affect Your Health

The tiny helpers are crucial for ensuring you properly absorb nutrients from your food—and therefore affect your overall health. Here’s how.

5 MIN READ — 04/08/2025

Does it seem like food intolerances, like lactose intolerance, are more common these days? But did you know this could be linked to digestive enzymes? These tiny but powerful helpers in your body are essential for properly absorbing nutrients from your food. Yet, if they’re lacking or not produced in sufficient amounts, discomfort can quickly arise. Here’s everything you need to know about how these enzymes work and what you can do to support your digestion.

What Are Digestive Enzymes?

Digestive enzymes are specialised proteins that your body produces in various parts of the digestive tract. They play a crucial role in breaking down food into its basic components so that you can absorb all the nutrients you need for a healthy life. Without sufficient digestive enzymes, your body wouldn’t be able to extract nutrients from your food, which could impact your health and well-being. That’s why it’s so important to pay attention to your diet to support the optimal production of these enzymes.

What Do Digestive Enzymes Do in the Body?

The primary function of digestive enzymes is to break down food into smaller, easily absorbable molecules. These molecules, such as sugars, amino acids, and fatty acids, are then absorbed into the bloodstream and supply your body with energy and building materials for cells. Without this process, it would be impossible to efficiently use the food you eat.

How Are Digestive Enzymes Linked to Intolerances?

Digestive enzymes play a central role when it comes to food tolerances. In many cases of food intolerances, such as lactose intolerance or fructose malabsorption, the body lacks specific enzymes that are necessary to properly digest certain components of food.

For example, with lactose intolerance, the body doesn’t produce enough lactase, the enzyme that breaks down lactose into glucose and galactose. Without sufficient lactase, lactose remains undigested, causing unpleasant symptoms like bloating, stomach cramps, and diarrhoea. A deficiency in other digestive enzymes can cause similar issues with different food components, leading to poor tolerance of certain foods. Therefore, digestive enzymes can have a significant impact on whether you tolerate certain foods well or if they cause discomfort.

What Types of Digestive Enzymes Are There?

There are different types of digestive enzymes, each with a specific role:

  • Amylase: Breaks down carbohydrates by converting starch into sugars.
  • Protease: Breaks down proteins into amino acids.
  • Lipase: Breaks down fats into fatty acids and glycerol.
  • Lactase: Breaks down lactose, the sugar in milk, into glucose and galactose.
These foods contain digestive enzymes
These foods contain digestive enzymes

What Does Amylase Digest and Where Can It Be Found?

Amylase is an enzyme primarily found in sprouting grains such as barley, wheat, and corn. These foods begin producing amylase during the sprouting process to convert starch into sugars, which serve as an energy source for the sprout. Additionally, amylase is found in certain fruits like bananas and mangoes, which are natural sources of this enzyme. Consuming these foods can help support the digestion of carbohydrates right from the mouth, as amylase breaks down starch into more easily digestible sugars.

What Does Protease Digest and Where Can It Be Found?

Protease is the enzyme that breaks down proteins into smaller peptides and amino acids. Protease is particularly found in fermented products and certain fruits. Fermented foods like soy sauce, miso, and kimchi contain natural proteases that are produced during the fermentation process. Certain fruits like kiwis and pineapples are also natural sources of protease enzymes. These enzymes help digest proteins by breaking down the long chains of amino acids into more easily digestible components. Eating these foods can aid in the digestion of protein-rich meals.

What Does Lipase Digest and Where Can It Be Found?

Lipase, the enzyme that breaks down fats, is found in small amounts in various plant-based foods. Foods particularly rich in lipase include avocados, nuts like almonds and walnuts, as well as seeds like chia and flaxseeds. These foods naturally contain lipase, which can help support the digestion of fats by breaking down triglycerides into fatty acids and glycerol. Although the amount of lipase in these foods is relatively low, regular consumption can positively impact fat digestion.

What Does Lactase Digest and Where Can It Be Found?

Lactase is an enzyme specifically responsible for digesting lactose, the sugar found in dairy products. Unlike some other enzymes, lactase isn’t found in active form directly in foods. Instead, it’s produced in your small intestine. However, fermented dairy products like yoghurt and kefir often have higher lactase availability because the fermentation process partially breaks down the lactose. These foods may be better tolerated by people with mild lactose intolerance as they make lactose digestion easier.

What Are Plant-Based Digestive Enzymes Like Bromelain and Papain?

Bromelain and papain are plant-based digestive enzymes mainly known for their ability to break down proteins. These enzymes are proteolytic, meaning they break down proteins into smaller peptides and amino acids that are more easily absorbed and used by the body.

  • Bromelain is extracted from pineapples, particularly from the stem and juice of the fruit. It works primarily in the stomach and small intestine, where it aids in digesting protein molecules. Due to its proteolytic properties, bromelain helps improve protein digestion and eases the workload of the digestive system. Additionally, bromelain has anti-inflammatory and decongestant properties, making it a valuable enzyme beyond the digestive system.
  • Papain comes from papayas and has similar proteolytic properties to bromelain. It also works in the stomach and small intestine, breaking down proteins effectively and supporting digestion. Papain is traditionally used in meat preparation to tenderise it, highlighting its strong protein-breaking capabilities.

Both enzymes—bromelain and papain—play an important role in digestion by helping to efficiently break down proteins and enhance nutrient absorption. Their action in the digestive tract helps alleviate digestive discomfort that can occur after eating protein-rich meals.

Note: Many of these natural enzymes are lost during cooking or processing, as they are sensitive to heat.

Signs of a Digestive Enzyme Deficiency

If you regularly experience digestive issues such as stomach pain, bloating, or diarrhoea, it could be a sign of a digestive enzyme deficiency. These symptoms occur because your body struggles to fully break down food. Other symptoms of a deficiency may include weight loss, fatigue, weakness, and skin problems. It’s important to take these warning signs seriously, maintain a balanced and varied diet, and consider supplementing your diet if needed.

At a Glance

  • 01.

    Digestive enzymes break down complex foods into smaller, easily absorbable molecules like sugars, amino acids, and fatty acids, which your body then uses for energy and cell repair.

  • 02.

    In cases of intolerances like lactose intolerance, the body doesn’t produce enough specific enzymes, leading to digestive issues like bloating, stomach cramps, and diarrhoea.

  • 03.

    A balanced, varied diet ensures you get enough digestive enzymes to support your digestion.

Article Sources

Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. Do not exceed the indicated daily intake. Keep out of reach of children. Please inform and consult your doctor before consuming this product. Not suitable for children and adolescents under 18 years, pregnant or breastfeeding women. Refrain from taking other food supplements containing zinc. Persons taking anticoagulant medication should seek medical advice before consuming vitamin K-containing supplements.

* Genuine reviews from customers who received a review link after purchase.

** Offer valid for new subscribers only. Free Shipping does not apply to customers in Switzerland and Norway.

º Food Supplement. In combination with a healthy diet and exercise.

ª Survey on the awareness of multi-nutrient powders with 211 consumers aged 18 to 49 in Germany, 09/24.

↡ Survey of 527 AG1 customers after 12+ days of use, 2024. The survey was conducted on a previous version of AG1’s continually evolving formulation. The survey results can be transferred to the current version of the formula due to no or scientifically negligible changes in supporting nutrients. Vitamins C, B6, B12, riboflavin, niacin, pantothenic acid, and folate help reduce tiredness and fatigue. Pantothenic acid supports mental performance. Calcium supports normal digestive enzyme function, while biotin maintains normal mucous membranes, such as the gut lining.

⧘ Compared to individual supplements typically sold in retail, such as:
Vitamin B complex, Vitamin A, Vitamin C, Vitamin E, bacterial cultures, zinc, magnesium, calcium, selenium, chromium, manganese, molybdenum, coenzyme Q10, greens powders (from sea algae like spirulina, barley leaf, wheatgrass, dandelion, spinach powder, etc.), mushroom supplements (reishi, shiitake)

‡ Survey of 144 verified customers from 12 European countries who have been taking AG1 for an average of 9 days.

Immune System

1: With vitamins A, C, B6 and B12 as well as folate, zinc, copper and selenium, AG1 contributes to the normal function of the immune system. Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise.

Energy; Metabolism

2: Vitamins C, B6, B12, riboflavin, niacin, pantothenic acid and magnesium contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue. With vitamins C, B6, B12, as well as thiamine, riboflavin, niacin, biotin, pantothenic acid, calcium, phosphorus, copper and manganese, AG1 contributes to normal energy-yielding metabolism. Magnesium contributes to electrolyte balance. Biotin, zinc and chromium contribute to normal macronutrient metabolism.

Cell Protection

3: With vitamins E and C as well as riboflavin, zinc, copper and selenium, AG1 contributes to the protection of cells from oxidative stress. Phosphorus contributes to normal function of cell membranes. Folate, Vitamin B6 and B12 contribute to normal homocysteine metabolism.

Mental Performance; Psychological Function; Nervous System

4: With pantothenic acid, AG1 contributes to normal mental performance. Zinc contributes to normal cognitive function. With vitamins C, B6, B12, B1, B3 and B7 AG1 contributes to normal psychological function and to normal functioning of the nervous system. Calcium contributes to normal neurotransmission.

Skin, Hair & Nails

5: With vitamins A, as well as riboflavin, niacin, biotin and zinc, AG1 contributes to the maintenance of normal skin. Vitamin C contributes to normal collagen formation for the normal function of skin. Vitamin B7, zinc and selenium contribute to the maintenance of normal hair. Zinc and selenium contribute to the maintenance of normal nails.

Hormonal System

6: With vitamin B6, AG1 contributes to the regulation of hormonal activity. Zinc contributes to the maintenance of normal testosterone levels in the blood. Selenium contributes to the normal thyroid function. With chromium, AG1 contributes to the maintenance of normal blood glucose levels.

Digestion

7: Calcium contributes to the normal function of digestive enzymes. Biotin AG1 contributes to the maintenance of normal mucous membranes (e.g. intestinal mucosa).

Muscles

8: With calcium and magnesium, AG1 contributes to normal muscle function.