Enhancing digestive wellness: The power of targeted enzymes

Digestive comfort plays a central role in overall wellbeing, yet a growing number of individuals report upper gastrointestinal complaints following everyday meals.

Modern dietary patterns, often characterized by complex, multi-nutrient and processed foods, can increase the functional demand placed on physiological digestive processes. When digestive function becomes persistently impaired, these symptoms may fall within clinically defined conditions such as dyspepsia.

Dyspepsia is a multifactorial disorder characterized by upper gastrointestinal symptoms such as postprandial fullness, early satiety, epigastric pain, bloating, nausea, and heartburn, arising from complex mechanisms including motility disorders, visceral hypersensitivity, inflammation, and psychosocial factors (e.g. poor sleep quality).¹

Functional dyspepsia (FD) is the most common form, affecting 10% to 30% of the global population, with higher prevalence in women.^1,3 FD is defined by persistent or recurrent symptoms without structural lesions and is classified into postprandial distress syndrome and epigastric pain syndrome according to Rome IV criteria.² Its chronic nature poses a significant healthcare burden.⁴

Current management includes lifestyle changes and pharmacological therapies such as antacids, proton pump inhibitors, H2 receptor antagonists, prokinetics, and antibiotics, but effectiveness is limited and adverse events can occur.^4-7 This has led to growing interest in non-pharmacological approaches, particularly digestive enzyme supplementation, as supportive tools to optimize physiological digestion and improve postprandial comfort.⁵

Microbial digestive enzymes: Sources and functional advantages

Digestive enzymes used in supplementation can be derived from animal, plant, or microbial sources. Among these, enzymes obtained through microbial fermentation are preferred due to broad pH activity, gastrointestinal stability, and cost-effective production.^9-12 Bacterial enzymes such as Bacillus-derived proteases enhance protein digestion, yeast-derived enzymes aid lipid and carbohydrate metabolism, and fungal enzymes improve plant protein digestion and mineral bioavailability.^9,13-20

Clinical studies show microbial multi-enzyme complexes effectively reduce postprandial fullness and improve FD symptoms, including bloating, pain, and quality of life, while being safe and well tolerated.^5,6,21,22 These findings support the use of broad-spectrum digestive enzyme blends as adjunctive intervention for individuals experiencing occasional digestive discomfort.

Targeted enzyme formulations for dietary needs

Poolzyme® is a clinically tested range of digestive enzyme formulations developed by Giellepi to help manage occasional digestive discomfort and the sensation of fullness following heavy meals. The line features carefully selected enzymes of fermentative origin designed to support the breakdown of fats, carbohydrates, proteins, fibers, and lactose, meeting the digestive needs of consumers with active and diverse dietary lifestyles.

Poolzyme Multi is a broad-spectrum, clinically tested, digestive enzyme formulation developed to help reduce occasional digestive discomfort and post-meal fullness. Its blend of vegetarian enzymes supports the digestion of fats, carbohydrates, proteins, fibers, and lactose, contributing to improved digestive comfort after large meals.

The efficacy of Poolzyme Multi has been confirmed in a randomized, double-blind, placebo-controlled clinical study conducted in healthy adults with functional dyspepsia, demonstrating benefits on digestive symptoms and sleep quality following regular use.²³ Study outcomes focused on digestive symptom relief, evaluated using the validated Nepean Dyspepsia Index–SF, along with sleep quality assessed through the Pittsburgh Sleep Quality Index (PSQI). Assessments were conducted at baseline and after one and two months of supplementation.

Poolzyme Multi showed significantly greater improvements than placebo in the frequency and severity of functional dyspepsia symptoms, with measurable benefits observed as early as 30 days.

Improvements in sleep quality were also recorded, with Poolzyme Multi producing a significant benefit compared to placebo from the first month of supplementation (p < 0.01). By the end of the study, PSQI scores were reduced by 27.7% versus both baseline and placebo. No adverse events were reported throughout the study period.

Supporting lactose tolerance

Dairy foods are an important source of nutrients, including those essential for bone health, but may cause gastrointestinal discomfort in some people.

Lactose intolerance, resulting from insufficient levels of the natural enzyme lactase, prevents proper breakdown of milk sugar, leading to symptoms like bloating, gas, and diarrhea. Additionally, certain dairy proteins, such as casein and whey, may be challenging to digest in certain contexts.

Poolzyme Dairy combines lactase for lactose digestion, protease to break down dairy proteins, and lipase to support the digestion of fats, particularly in high-fat dairy products like cheese, promoting overall digestive comfort.

Its effectiveness, together with that of Poolzyme Multi, has been demonstrated in a preclinical study using the INFOGEST digestion model, which replicates the oral, gastric, and intestinal phases of human digestion under physiologically relevant conditions.²⁷

The enzyme blends were evaluated on two representative multi-nutrient meals (a fast-food hamburger with fries and a multi-cheese frozen pizza) chosen for their macronutrient profiles and real-world dietary relevance. Both formulations significantly enhanced protein breakdown, as shown by increased levels of total free amino acids and branched-chain amino acids.

Poolzyme Dairy also showed a dose-dependent reduction of residual lactose in the cheese-containing matrix. Poolzyme Multi further promoted carbohydrate digestion through amylolytic and cellulolytic activity, while the lipolytic activity of both formulations significantly increased free fatty acid liberation.

These findings provide a mechanistic explanation for the clinical improvements observed in individuals with functional dyspepsia and highlight the potential role of targeted enzyme supplementation as a strategy to enhance the physiological digestion of complex meals and promote postprandial digestive comfort.

Digestion of plant-based diets

Poolzyme Veg has been developed as a specialized enzyme blend intended to support the digestion of plant-based diets, including vegetarian and vegan eating patterns. While plant-based diets offer numerous health benefits, the high content of complex fibers and polysaccharides may lead in some individuals to digestive discomfort, such as bloating, gas, and cramping.

To aid the breakdown of these plant components, Poolzyme Veg provides a combination of five fungal enzymes, including alpha-galactosidase, which plays a central role by facilitating the breakdown of oligosaccharides commonly found in legumes, whole grains and cruciferous vegetables, nutrients that the body cannot efficiently digest on its own.

By enhancing the enzymatic degradation of these complex carbohydrates, the formulation is designed to support improved nutrient absorption while promoting greater digestive comfort in individuals following plant-based diets.

Nutritional regimens characterized by elevated lipid intake, such as ketogenic-style diets, are increasingly adopted for weight management and cognitive performance. However, their high fat content may slow stomach emptying and, in some individuals, contribute to bloating, discomfort, or acid reflux.

To address this, Poolzyme Keto has been formulated to complement the physiological digestion of high-fat, low carbohydrate meals. The product contains a fungal lipase that efficiently breaks down triglycerides into absorbable fatty acids even in the acidic environment of the stomach, alongside a protease blend active across a broad pH range to aid protein digestion.

By targeting the specific macronutrient profile of fat-rich meals, this combination helps individuals following keto or other high-fat diets digest their meals more comfortably while maximizing nutrient absorption.

Taken together, the Poolzyme portfolio reflects a structured, diet-specific approach to supporting digestive health. Functional dyspepsia is common and can impact daily comfort and quality of life, while conventional treatments do not always provide complete relief. Digestive enzyme supplementation, such as Poolzyme, offers a convenient way to support nutrient breakdown and digestive efficiency.

With targeted formulations for general digestion, dairy, plant-based, and high-fat diets, Poolzyme helps enhance the breakdown of proteins, carbohydrates, fats, and lactose, providing evidence-based, non-pharmacological support for individuals experiencing occasional digestive discomfort.

References

1. Talley NJ.; et al. Functional Dyspepsia. N Engl J Med. 2015 Nov 5;373(19):1853-63.
2. Holtmann, G.; et al. A placebo-controlled trial of itopride in functional dyspepsia. N Engl J Med. 2006 Feb 23;354(8):832-40.
3. Enck, P.; et al. Functional dyspepsia. Nat Rev Dis Primers. 2017 Nov 3;3:17081.
4. Sayuk, GS.; et al. Functional Dyspepsia: Diagnostic and Therapeutic Approaches. Drugs. 2020 Sep;80(13):1319-1336.
5. Majeed, M.; et al. Evaluation of the Safety and Efficacy of a Multienzyme Complex in Patients with Functional Dyspepsia: A Randomized, Double-Blind, Placebo-Controlled Study. J Med Food. 2018 Nov;21(11):1120-1128.
6. Corsetti, M.; et al. The management of functional dyspepsia in clinical practice: what lessons can be learnt from recent literature? F1000Res. 2017 Sep 28;6:1778.
7. Lacy, BE.; et al. Review article: current treatment options and management of functional dyspepsia. Aliment Pharmacol Ther. 2012 Jul;36(1):3-15.
8. Khandke, D.; et al. Post-Marketing Surveillance Study to Assess the Efficacy and Tolerability of Al 5 Zyme — a Multienzyme Preparation in Patients with Functional Dyspepsia. Semantic Scholar. 2013.
9. Roxas M. The role of enzyme supplementation in digestive disorders. Altern Med Rev. 2008 Dec;13(4):307-14.
10. Garvey, SM.; et al. Fungal digestive enzymes promote macronutrient hydrolysis in the INFOGEST static in vitro simulation of digestion. Food Chem. 2022 Aug 30;386:132777.
11. Nakamura, T.; et al. Pancreatic dysfunction and treatment options. Pancreas. Semantic Scholar. 1998; 16.
12. Do, T.; et al. (2016). Using a dynamic stomach model to study efficacy of supplemental enzymes during simulated digestion. LWT, 65, 580–588.
13. Song, P.; et al. Microbial proteases and their applications. Frontiers in Microbiology. 2023; 14, Article 1236368.
14. Chandra, P.; et al. Microbial lipases and their industrial applications: a comprehensive review. Microb Cell Fact. 2020 Aug 26;19(1):169.
15. Kumitch, H.; et al. Effect of fermentation time on the nutritional properties of pea protein-enriched flour fermented by Aspergillus oryzae and Aspergillus niger. Cereal Chemistry. 2020; 97, 104–113.
16. Rathi, A.; et al. Study of amino acids absorption and gut microbiome on consumption of pea protein blended with enzymes-probiotics supplement. Front Nutr. 2024 Jan 23;11:1307734.
17. Singh, P.; et al. (2019a). Microbial enzyme in food biotechnology. Enzymes in food biotechnology. Academic Press. 2019; 19-28. (pp. 19–28).
18. Singh, P.; et al. (2019a). Microbial enzymes—an overview. Enzymes in food biotechnology. Academic Press. 2019; 19-28. (pp. 19–28).
19. Gautam, R. L.; et al. A factory of multipurpose enzymes: Cloning of enzymatic genes. In Fungal biotechnology and bioengineering. 2020; pp. 137–162.
20. Pouris, J.; et al. The role of fungi in food production and processing. Applied Sciences. 2024; 14, 5046.
21. Levine, ME.; et al. Lipase Supplementation before a High-Fat Meal Reduces Perceptions of Fullness in Healthy Subjects. Gut Liver. 2015 Jul;9(4):464-9.
22. Ullah, H.; et al. Efficacy of digestive enzyme supplementation in functional dyspepsia: A monocentric, randomized, double-blind, placebo-controlled, clinical trial. Biomed Pharmacother. 2023 Dec 31;169:115858.
23. Ullah, H.; et al. Efficacy of digestive enzyme supplementation in functional dyspepsia: A monocentric, randomized, double-blind, placebo-controlled, clinical trial. Biomed Pharmacother. 2023 Dec 31;169:115858.
24. Ianiro, G.; et al. Digestive Enzyme Supplementation in Gastrointestinal Diseases. Curr Drug Metab. 2016;17(2):187-93.
25. Singh, R.; et al. (2018). Enzymes used in the food industry: Friends or foes?. In Enzymes in food biotechnology: Production, applications, and future prospects. 2018; pp. 827–843.
26. Precup, G.; et al. Novel foods, food enzymes, and food additives derived from food by-products of plant or animal origin: Principles and overview of the EFSA safety assessment. Frontiers in Nutrition. 2024; 11, 1390734.
27. Robin Duncan, R.; et al. Simulated gastrointestinal digestion of two convenience meals using fungal enzyme formulations. Food Bioscience. 2025; 71: 107283.