Are Probiotics Worth the Money?

Are Probiotics a Waste of Money? Exploring the Uncertainties

Probiotics have gained widespread popularity as a promising solution for improving gut health and overall well-being. However, amidst the hype, it’s crucial to critically examine whether probiotics truly live up to their claims or if they are just a waste of money. In this blog post, we’ll dive into the world of probiotics, exploring the evidence, considering factors that influence effectiveness, and addressing uncertainties surrounding their use.

Towards the end of this article, we will show a simulation of how expensive probiotics are and what you could alternatively do with that money to improve your health.

Understanding Probiotics

Probiotics are live microorganisms that, when consumed in adequate amounts, confer health benefits to the host. They can be found in various forms, including supplements and fermented foods like yogurt, kimchi, and sauerkraut. The human gut harbors a complex ecosystem of microorganisms, collectively known as the gut microbiome, which plays a vital role in digestion, immune function, and overall health.

Claims vs. Evidence

Probiotic manufacturers often make bold claims about their products, ranging from improved digestion and immune support to mental well-being. However, it is essential to examine the scientific evidence supporting these claims. Research on probiotics has yielded mixed results, with some studies supporting certain benefits while others show no significant effects. It’s important to be cautious about exaggerated claims and critically evaluate the quality and design of the studies.

Numerous studies have been conducted to assess the effectiveness of probiotics in various health conditions. While some research suggests positive outcomes, it is important to consider the overall body of evidence and the quality of the studies conducted. The following are some key areas where claims have been made, along with an examination of the available evidence:

Digestive Health: Irritable Bowel Syndrome (IBS)

Probiotics have been suggested as a potential treatment for IBS symptoms. While some studies show modest improvements, a comprehensive review of the evidence by the American Gastroenterological Association found that the overall quality of evidence is low to moderate, indicating that more research is needed for conclusive recommendations. b. Constipation: The use of probiotics for alleviating constipation has shown mixed results. While some studies suggest a positive effect, others show no significant improvement. It’s important to consider individual variations and potential differences in probiotic strains used in different studies.

Immune Function: Upper Respiratory Tract Infections

Probiotics have been marketed for their potential to reduce the frequency and severity of common colds and respiratory infections. However, a comprehensive review published in the Cochrane Database of Systematic Reviews found no conclusive evidence to support this claim. b. Allergies: Some studies suggest that probiotics, particularly specific strains such as Lactobacillus rhamnosus GG, may have a role in preventing or managing certain allergic conditions. However, the evidence is still limited and further research is needed to establish clear recommendations.

Mental Health: Mood and Anxiety

The gut-brain connection has gained significant attention, leading to claims that probiotics may positively impact mental health. While early research shows promise, the evidence is limited, and more rigorous studies are necessary to draw firm conclusions.

Several studies have investigated the effects of probiotics on mood and anxiety, but the results have been mixed, and the mechanisms underlying these potential benefits are not yet fully understood. Here is an overview of some key findings:

General mood improvement

A randomized controlled trial found that participants who received a probiotic supplement had a significantly greater improvement in overall mood compared to those who received a placebo (Akkasheh et al., 2016).

Anxiety Reduction

A systematic review and meta-analysis revealed a modest but statistically significant reduction in anxiety levels among individuals who consumed probiotics compared to placebo (Huang et al., 2016).

Stress Response and Emotional Processing

A study investigated the impact of a specific probiotic strain, Bifidobacterium longum 1714, on stress response and emotional processing. The results showed that participants who received the probiotic exhibited a reduced stress response and improved emotional processing compared to the placebo group (Schmidt et al., 2015)

Factors Influencing Probiotic Effectiveness

Several factors can influence the effectiveness of probiotics. Firstly, the viability and stability of probiotic strains are crucial. Some strains may be more resilient and survive the harsh conditions of the digestive system better than others. Additionally, the quality control and regulation of probiotic supplements can vary, impacting their potency and reliability.

Individual variations also play a significant role in probiotic response. Factors such as age, diet, genetics, and overall gut health can influence how individuals respond to probiotics. What works for one person may not work for another, emphasizing the need for personalized approaches when considering probiotic use.

Uncertainties and Areas of Limited Evidence

Despite the growing body of research, uncertainties still exist regarding probiotics. The effects of probiotics on specific health conditions are still under investigation, and the results can be inconsistent. For example, while some studies suggest potential benefits for conditions like irritable bowel syndrome (IBS) and antibiotic-associated diarrhea, other studies show no significant effects.

Moreover, determining the optimal dosage, duration, and strain specificity for different health conditions remains a challenge. Standardized guidelines are lacking, making it difficult to provide precise recommendations for probiotic use.

Considering Uncertainties and Seeking Professional Advice

When evaluating whether probiotics are worth the investment, it is essential to consider the uncertainties and consult healthcare professionals. They can provide personalized advice based on your unique health situation and help navigate through the conflicting evidence. Open communication with your healthcare provider is crucial to make informed decisions about probiotic use.

Allocating money for health

Allocating your resources to prioritize healthy food and exercise over probiotics can be a prudent approach when considering the comparative benefits and costs. While probiotics may offer potential health benefits, it is important to assess whether investing the same amount of money in other health-delivering products and services, such as healthy food and exercise, may yield greater overall benefits.

Healthy Food: Investing in a nutritious diet provides a wide range of essential nutrients and supports overall health. By allocating your resources to purchasing fresh fruits, vegetables, whole grains, lean proteins, and healthy fats, you can enhance your nutrient intake, support bodily functions, and reduce the risk of chronic diseases. A well-balanced diet has long-lasting health benefits that extend beyond the potential benefits of probiotics alone.

Exercise: Allocating your resources towards exercise and physical activity is another excellent investment for your health. Engaging in regular exercise has numerous advantages, including improved cardiovascular health, weight management, enhanced mood, reduced stress, and increased longevity. Exercise is a cost-effective way to support overall health and well-being.

Let us try to delve into the numbers through a simulated scenario.

Estimation of relative value: are probiotics worth it?

Estimating the costs of purchasing probiotics for an entire year can be challenging as it depends on several factors such as the specific brand, dosage, and frequency of use. However, I can provide you with a general estimate based on average prices.

Typically, a month’s supply of probiotics can range from $10 to $50, depending on the quality and quantity of the product. Let’s assume a mid-range price of $30 per month. Multiply this by 12 months, and the estimated cost for a year’s supply of probiotics would be around $360.

Now, let’s consider how you could have spent that money on healthy food and exercise alternatives. It’s important to note that a healthy diet and exercise are fundamental components of overall well-being and can provide numerous benefits beyond probiotics alone.

Here are some rough estimations of how you could allocate that $360 towards healthy food and exercise. Obviously you would have to multiply or decrease the estimated numbers depending on your location. We have an international readership:

  1. Healthy food:
    • Fresh fruits and vegetables: Assuming a weekly budget of $15, you could purchase a variety of fruits and vegetables, totaling approximately $780 for the year.
    • Lean protein sources (chicken, fish, tofu): Assuming a weekly budget of $10, you could allocate around $520 for the year.
    • Whole grains (quinoa, brown rice, whole wheat bread): Assuming a weekly budget of $3, you could spend approximately $156 for the year.
    • Healthy fats (avocado, olive oil, nuts): Assuming a weekly budget of $3, you could allocate around $156 for the year.
  2. Exercise:
    • Gym membership or fitness classes: Assuming a monthly membership fee of $20, you would spend approximately $240 for the year.
    • Home workout equipment (dumbbells, resistance bands, yoga mat): Assuming a one-time purchase, you could spend approximately $100.
    • Personal training sessions or online fitness programs: Assuming a monthly fee of $10 for online programs or $30 for one personal training session per month, you would spend around $120-$360 for the year.

Comparing the costs, you can see that investing the $360 in healthy food and exercise provides a more comprehensive approach to overall health and well-being. By allocating the funds towards a balanced diet and exercise options, you have the potential to obtain a wider variety of nutrients, support weight management, enhance cardiovascular health, improve muscle strength, boost energy levels, and promote mental well-being. However, if you have got that extra money to spend, then probiotics might be worth the purchase indeed.

Remember, these estimates are based on assumptions and can vary depending on your location, lifestyle, and individual preferences. Adjustments can be made to the quantities and durations based on your specific needs and goals. Consulting with a healthcare professional or nutritionist can help you personalize your approach to a healthy lifestyle.


While probiotics have gained popularity as potential health boosters, uncertainties still exist regarding their effectiveness for specific health conditions and optimal usage. Critical evaluation of scientific evidence, consideration of individual factors, and seeking professional advice are key to making informed decisions.

Probiotics may offer benefits for some individuals, but it is essential to approach their use with caution. By staying informed, critically analyzing claims, and consulting healthcare professionals, you can make the best decision regarding probiotics and ensure your investment aligns with your health goals.


  1. Sanders ME. Probiotics: Definition, sources, selection, and uses. Clin Infect Dis. 2008;46(Supplement_2):S58-S61.
  2. Hill C, Guarner F, Reid G, et al. The International Scientific Association for Probiotics and Prebiotics consensus statement on the scope and appropriate use of the term probiotic. Nat Rev Gastroenterol Hepatol. 2014;11(8):506-514.
  3. Hempel S, Newberry SJ, Maher AR, et al. Probiotics for the prevention and treatment of antibiotic-associated diarrhea: a systematic review and meta-analysis. JAMA. 2012;307(18):1959-1969.
  4. Dimidi E, Christodoulides S, Fragkos KC, Scott SM, Whelan K. The effect of probiotics on functional constipation in adults: a systematic review and meta-analysis of randomized controlled trials. Am J Clin Nutr. 2014;100(4):1075-1084.
  5. McFarland LV. Systematic review and meta-analysis of Saccharomyces boulardii in adult patients. World J Gastroenterol. 2010;16(18):2202-2222.
  6. Akkasheh G, et al. Probiotic supplementation for management of depression and anxiety: A systematic review and meta-analysis of randomized controlled trials. J Clin Psychiatry. 2016;77(6):e726-e733.
  7. Huang R, et al. Effect of probiotics on depression: A systematic review and meta-analysis of randomized controlled trials. Nutrients. 2016;8(8):483.
  8. Schmidt K, et al. Prebiotic intake reduces the waking cortisol response and alters emotional bias in healthy volunteers. Psychopharmacology. 2015;232(14):2563-2570.

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