Best Probiotic Supplements for Men and Women: Digestion, Immunity & Bloating
Written by Reem Al Karim & reviewed by Paul Holmes.
Probiotics are live microorganisms that have been widely studied for their relationship with gut microbiome, the complex community of bacteria and other microbes living in the digestive tract. Scientists estimate that the human gut contains trillions of microorganisms that interact with nutrients, digestive processes, and various biological systems in the body [1]. Because of this close relationship between gut microbes and overall physiological function, many people explore ways to support microbiome balance, often searching for the best probiotic supplements to include in their daily routine.
The composition of the gut microbiome can vary from person to person and may be influenced by factors such as diet, lifestyle, medication use, and hormonal differences. As a result, both men and women may choose to incorporate a probiotic supplement into their wellness habits, although some formulations are marketed with specific considerations for different biological needs.
In this guide, we’ll explore different types of probiotic supplements, how they compare with probiotic-rich foods, and the differences sometimes discussed between the best probiotics for women and the best probiotic for men. We’ll also look at factors to consider when choosing a probiotic product. At Naturecan, we aim to provide clear, science-based information to help readers better understand supplements and make informed decisions about their wellbeing.
What Are Probiotics?
Probiotics are live microorganisms that may contribute to the diversity of bacteria within the gut microbiome when consumed in adequate amounts. The gut microbiome is the large community of microbes living in the digestive tract, and scientists estimate that the human gut contains trillions of microorganisms that together form the gut microbiota [1][2].
The composition of this microbial community can change over time. Several factors may influence microbiome diversity, including:
- Diet, particularly fibre and fermented foods
- Lifestyle habits, such as stress and sleep patterns
- Medication use, including antibiotics
Probiotics can be obtained through fermented foods or dietary supplements, including capsules and probiotic tablets that contain selected microbial strains studied in microbiome research.
Below are some of the most commonly studied probiotic groups.
Lactobacillus
Lactobacillus species are widely studied probiotic bacteria and are commonly found in fermented foods. They are frequently included in probiotic supplements because of their long history of use in food fermentation and microbiome research [3].
Common sources include:
- Yogurt with live cultures
- Kefir
- Fermented vegetables
Bifidobacterium
Bifidobacterium species naturally occur in the human digestive tract and are often included in probiotic formulations. These bacteria are commonly studied in research examining microbial diversity in the gut [4].
Examples include:
- Bifidobacterium longum
- Bifidobacterium bifidum
Saccharomyces boulardii
Saccharomyces boulardii is a probiotic yeast rather than a bacterium. It is sometimes used in probiotic products and has been investigated in microbiome research exploring microbial interactions in the digestive system [5].
Best Probiotic Supplements for Gut Health
When choosing the best probiotics for gut health, many consumers look at several factors that may influence the quality and formulation of a probiotic supplement. Because probiotic products can vary widely, understanding what to look for can help readers make more informed choices.
Some of the most commonly considered factors include:
- CFU count (colony-forming units): This indicates the number of live microorganisms in a serving of the product.
- Strain diversity: Many probiotic supplements contain multiple bacterial strains to reflect the diversity of microbes found in the gut microbiome.
- Clinically studied strains: Certain probiotic bacteria have been examined in scientific research exploring the gut microbiota and microbial balance.
- Shelf stability and delivery format: Capsules, powders, and probiotic tablets may use different technologies to help protect microorganisms during storage and digestion.
Different probiotic formulations often include strains that have been widely investigated in microbiome research.
role in overall wellbeing.
Lactobacillus rhamnosus
Lactobacillus rhamnosus is one of the most frequently studied probiotic strains. It has been examined in a range of scientific studies exploring microbial activity in the digestive system and the diversity of bacteria within the gut microbiome [6].
Bifidobacterium longum
Bifidobacterium longum is naturally present in the human gut microbiota and is commonly included in probiotic supplements. This species has been widely researched for its role within the microbial ecosystem of the digestive tract [7].
Lactobacillus acidophilus
Lactobacillus acidophilus is another well-known probiotic bacterium frequently used in probiotic formulations. It is commonly found in fermented dairy products and is often included in supplements designed to provide a combination of beneficial bacterial strains [8].
For convenience, many people choose probiotic tablets or capsules as part of their daily supplement routine. These formats can make it easier to incorporate probiotics alongside other nutritional products. For example, digestive support supplements such as Naturecan’s Digest Gummies are designed to fit into everyday wellness routines while complementing a balanced diet.
Best Probiotics for Women
Researchers have observed that the composition of the gut microbiome can vary between individuals. In women, microbiome diversity may sometimes be influenced by biological and lifestyle factors such as:
- Hormonal changes throughout different life stages
- Pregnancy, which can influence physiological and microbial environments
- Menopause, when hormonal shifts may affect microbiome composition
- Diet and lifestyle habits, including physical activity and food choices
Because of these factors, some probiotic supplements are formulated with strains that have been studied in relation to microbial communities commonly found in women’s digestive and vaginal microbiomes. When exploring the best probiotics for women, readers may notice that many formulations include specific Lactobacillus species that are frequently investigated in microbiome research.
Best Probiotics for Men
The composition of the gut microbiome can vary significantly between individuals. Factors such as diet, exercise habits, sleep patterns, and overall lifestyle may influence the diversity and balance of microorganisms in the digestive tract [10]. Because of these differences, probiotic supplements are sometimes formulated with specific bacterial strains that have been studied in microbiome research and are included in products marketed toward men.
When exploring the best probiotic for men, consumers may notice that many formulations focus on strains commonly examined in studies of digestive microbiota and microbial diversity.
Common Strains Included in Men’s Formulations:
Some probiotic supplements designed for men may include strains such as:
- Bifidobacterium bifidum
- Lactobacillus plantarum
- Lactobacillus casei
These bacteria are frequently included in probiotic supplements because they are naturally present in the human gut microbiota and have been widely examined in microbiome research [11].
Most probiotics for adults are formulated using a combination of multiple bacterial strains, often referred to as multi-strain probiotics. This approach reflects the natural diversity of microorganisms present in the gut microbiome and allows supplement formulations to include different types of bacteria within a single product.
Naturecan Supplements for Probiotic Support
Many probiotic supplements are formulated for general adult use, meaning they can be suitable for both men and women. Multi-strain formulations often include bacteria from the Lactobacillus and Bifidobacterium groups, which are commonly studied in microbiome research [1].
Naturecan offers several supplements that can complement a gut-focused wellness routine.
Digest Gummies
Naturecan’s Digest Gummies provide a convenient option for supporting digestive balance.
Key features:
- Easy-to-take gummy format
- Designed for everyday digestive support routines
- Suitable for both men and women
Digest Gummies
Support your digestive health and immune system with our new Digest Gummies! Designed to aid in digestion, our easy digest supplements are backed by over 25 published papers and recommended by trusted Nutritionists, making them a fantastic addition for all health, and wellness enthusiasts alike.
Potential Benefits:
- A high dose of Heyndrickxia Coagulans - a natural probiotic supporting digestive health.
- Added Vitamin C to optimise your immune system
- Can potentially increase protein absorption
- Third-party tested
- Made in Europe in a GMP-Facility
Gut Health Bundle
The Gut Health Bundle combines several supplements designed to complement a gut-health routine.
Key features:
- Combination of complementary supplements
- Designed to support daily gut health habits
- Suitable for adults seeking the best probiotic supplement as part of their routine
Naturecan's Gut Health Bundle
Gut health involves much more than just digestion. A healthy gut can potentially lift your mood, support your skin, boost energy, and may even help your immune system. When things are off-balance, it can affect how you feel, paving the way for complications like bloating, sluggishness, and that ‘off-balance’ feeling you can’t quite get rid of.
Potential Benefits:
- Helps maintain a healthy, balanced gut
- Supports digestion and nutrient absorption
- All-in-one solution with prebiotics, probiotics, and potential anti-inflammatory support
- More cost-effective than buying products separately
- Tasty gummies and easy-to-swallow capsules, providing a daily routine you'll enjoy
Multivitamins
Naturecan’s Multivitamins can complement probiotic supplementation.
Key features:
- Broad spectrum of essential vitamins
- Supports overall nutritional intake
- Suitable for everyday wellbeing routines
Naturecan's Multivitamins
Support your body’s day-to-day needs with Naturecan’s Multivitamins, expertly formulated to deliver 23 essential vitamins and minerals in one convenient capsule. Created with an all-in-one approach to help bridge nutritional gaps, our multivitamins are a simple way to promote energy production, immune function, and overall well-being, ideal for those with busy lifestyles or potential dietary restrictions.
Potential Benefits:
- Supports the immune system and energy production
- Promotes healthy skin, hair, and nails
- May contribute to cognitive and heart health
Vitamin D3 & 2K
The Vitamin D3 & K2 supplement provides two nutrients commonly included in daily health routines.
Key features:
- Combination of vitamin D3 and vitamin K2
- Designed to support general wellbeing
- Easy to integrate into supplement routines
Naturecan's Vitamin D3 & K2
Our Vitamin D3 and K2 tablets are expertly formulated to provide you with optimal levels of these essential nutrients. With 100μg of vitamin D3 and 100μg vitamin K2 per serving, our convenient daily tablet is essential for bone health and perfect for regular gym-goers.
Potential Benefits:
- Over 100% daily NRV
- Boosts immune system function
- Supports bone health and calcium absorption
- Promotes cardiovascular health
- K2Vital® – micro-encapsulated all-trans K2-MK7
NMN Supplement
Naturecan’s NMN Supplement is often used in longevity-focused supplement routines.
Key features:
- Provides nicotinamide mononucleotide (NMN)
- Designed for adults interested in longevity research
- Often combined with probiotic routines in longevity-focused strategies
Naturecan's NMN Supplement
Designed for those seeking lasting energy and healthy ageing from within. Our NMN is β-NMN, the same form naturally produced and used by the body, allowing it to be readily absorbed and utilised by cells.
Potential Benefits:
- 500mg of pure NMN (Nicotinamide Mononucleotide) per capsule
- Supports NAD+ production and cellular energy
- Promotes healthy ageing and DNA repair
- +99% Purity - Certificate of Analysis
Probiotic Foods That Contain Beneficial Bacteria
Probiotics are not only found in supplements. Many fermented foods naturally contain microorganisms produced during the fermentation process [12].
Common Probiotic Foods
Examples include:
- Yogurt with live cultures
- Kefir
- Kimchi
- Sauerkraut
- Miso
- Tempeh
- Kombucha
These foods contain microbes created during fermentation, which contribute to their unique flavour and microbial content.
However, the types and quantities of microorganisms in fermented foods can vary depending on production methods and storage conditions. In contrast, dietary probiotic supplements often contain specific bacterial strains and clearly defined microbial counts per serving.
How to Choose the Best Probiotic Supplement
When looking for the best probiotic supplement, it can be helpful to understand the key features that often distinguish different products. Probiotic supplements vary in formulation, strain selection, and delivery methods, so reviewing product details can help consumers make informed choices.
Some common factors to consider include:
- Number of CFUs per serving: CFU (colony-forming units) indicates the amount of live microorganisms contained in each dose.
- Diversity of bacterial strains: Some supplements include multiple strains to reflect the natural diversity of microorganisms found in the gut microbiome.
- Product stability: Certain probiotic products are designed to help maintain microbial viability during storage and digestion.
- Storage instructions: Some probiotics require refrigeration, while others are formulated to remain stable at room temperature.
- Quality testing: Reputable manufacturers may conduct third-party testing or quality checks to verify product composition.
Some probiotic formulations also combine probiotics with prebiotics. Prebiotics are dietary fibres that serve as a substrate for beneficial bacteria and are often included in supplements designed to complement gut health routines [13].
Combination of NMN, Probiotic and Prebiotic – Emerging Research
Scientists continue to investigate the relationship between the gut microbiome, metabolism, and ageing processes. Recent research has explored how combinations of compounds such as nicotinamide mononucleotide (NMN), probiotics, and prebiotics may interact with microbial activity and cellular metabolism in the body [14].
Some early studies have examined how these compounds may influence biological pathways associated with ageing and metabolic function. Researchers have also begun exploring whether microbiome-related interventions could be linked to biomarkers studied in neurodegenerative research, although this area of study remains in its early stages [15].
It is important to note that this field of research is still developing, and further studies are needed before clear conclusions can be drawn about the long-term effects of combining NMN with probiotic or prebiotic supplementation.
Lifestyle Factors That Influence the Gut Microbiome
While supplements can play a role in wellness routines, everyday lifestyle habits are also known to influence the diversity of the gut microbiome. Research suggests that diet, activity levels, and daily routines may all contribute to changes in microbial composition over time [16].
Some lifestyle factors that may support microbiome diversity include:
- Consuming fibre-rich foods, such as fruits, vegetables, legumes, and whole grains
- Including fermented foods like yogurt, kefir, or kimchi in the diet
- Maintaining regular sleep patterns, which support overall physiological balance
- Managing stress, as chronic stress may influence digestive processes
- Staying physically active, which has been associated with differences in gut microbiota composition in some studies [17]
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Conclusion
Probiotics are microorganisms that form part of the complex ecosystem known as the gut microbiome. Research continues to explore how these microbes interact with digestion and other biological processes in the body [1]. Because microbiome composition can vary between individuals, many people look for ways to support microbial diversity as part of their overall wellness routine.
Probiotics can be obtained from fermented foods such as yogurt, kefir, and kimchi, as well as from probiotic supplements designed to provide specific bacterial strains. Different probiotic formulations may contain a range of microorganisms commonly studied in microbiome research, including species from the Lactobacillus and Bifidobacterium groups.
When selecting a probiotic supplement, factors such as strain diversity, product quality, and personal preference often play an important role. Exploring science-backed supplements alongside a balanced diet and healthy lifestyle can help individuals make informed decisions about their wellbeing. Naturecan offers a range of carefully developed supplements designed to complement everyday health routines and support overall wellness.
- Regular strength training
- Consistent, high-quality sleep
- Balanced nutrition with adequate protein and healthy fats
- Managing long-term stress
- Maintaining a healthy body composition
- Ensuring sufficient intake of key nutrients such as vitamin D, zinc, and magnesium
Rather than chasing a specific testosterone number, prioritising overall wellbeing and sustainable routines tends to be more beneficial in the long run. When these foundations are in place, targeted supplements can help complement a healthy lifestyle.
FAQs
Paul Holmes
Director of Science and Innovation at Naturecan
Testing for large pharmaceutical & tobacco companies, Paul has built a wealth of scientific and regulatory knowledge, working on regulatory submissions to bodies such as the FDA and the MHRA.
He holds a BSc in Medicinal and Biological Chemistry and sits on the UKAS CBD Food Product Approval Expert Group.
