Dietary supplements and clinical research: How the effectiveness of dietary supplements is confirmed in Russia today
Why has the question of dietary supplement effectiveness become especially relevant?
Dietary supplements have long occupied an important place in preventing nutrient deficiencies and supporting overall health. However, for many years, their effectiveness remained a subject of discussion among physicians, nutrition specialists, and consumers.
The situation began to change following updates to Russian legislation. Today, scientific evidence, research findings, and the overall evidence base play an increasingly important role in the evaluation of certain dietary supplements. In addition, healthcare professionals have gained the opportunity to recommend specific supplements when appropriate indications are present and established requirements are met.
Let us examine how the effectiveness of dietary supplements is currently confirmed in Russia, the role of clinical research, and the criteria that should be considered when selecting products.
What are dietary supplements?
Dietary supplements are sources of vitamins, minerals, amino acids, plant extracts, and other biologically active substances intended to complement the diet.
It is important to understand that dietary supplements are not classified as medicinal products and are not intended to treat diseases as a standalone therapy. Their primary purpose is to correct deficiencies and support the body's physiological functions.
How have requirements for dietary supplements changed in Russia?
In recent years, government regulation of the dietary supplement market has become more stringent.
Since 2025, Russian legislation has provided for the possibility of healthcare professionals recommending certain dietary supplements when appropriate indications are present. To qualify, products must meet established requirements for quality and effectiveness.
In addition, evaluation criteria have been introduced that consider not only product safety but also the availability of scientific data supporting the claimed effects of the supplement.
This approach contributes to the development of a more transparent and scientifically grounded dietary supplement market.
Are clinical studies mandatory for dietary supplements?
One of the most common questions concerns the need for clinical research.
Unlike medicinal products, for which clinical studies are a mandatory stage of state registration, the requirements for dietary supplements remain different.
When assessing effectiveness, various types of evidence may be considered, including:
How is the effectiveness of dietary supplements evaluated?
Assessing effectiveness always requires a comprehensive analysis of research findings.
Statistical Significance
Statistical significance indicates the likelihood that observed differences between groups are not due to chance.
However, a statistically significant result does not always mean that the effect provides a meaningful benefit to individuals.
Clinical Significance
Clinical significance reflects the practical value of an effect.
For example, changes in laboratory parameters may be statistically significant while not resulting in improvements in well-being, quality of life, or reductions in the risk of complications.
Quality of the Evidence Base
The level of evidence is of particular importance.
The most reliable sources generally include:
Despite the growing body of evidence, studies of dietary supplements often have limitations.
The most common include:
How should evidence of dietary supplement effectiveness be evaluated?
When selecting a dietary supplement, it is advisable to consider the following factors:
The Russian dietary supplement market is gradually moving toward more rigorous standards for evaluating quality and effectiveness. Today, the scientific evidence base is becoming one of the key factors influencing the confidence of both healthcare professionals and consumers.
At the same time, dietary supplements are still not subject to the same registration and research requirements as medicinal products. Therefore, an objective assessment of effectiveness is only possible through analysis of the entire body of scientific evidence, including clinical studies, systematic reviews, meta-analyses, and professional guidelines.
This approach is consistent with the principles of evidence-based medicine and enables informed decisions regarding the use of dietary supplements.
Our team is also prepared to organize and conduct clinical studies of dietary supplements at our own clinic as well as at other medical centers and healthcare institutions appropriate to the intended area of application. All studies are conducted in accordance with modern requirements for scientific methodology, data collection, and product effectiveness assessment. We support projects at every stage, from protocol development to the preparation of final documentation and analytical reports on study outcomes.
Dietary supplements have long occupied an important place in preventing nutrient deficiencies and supporting overall health. However, for many years, their effectiveness remained a subject of discussion among physicians, nutrition specialists, and consumers.
The situation began to change following updates to Russian legislation. Today, scientific evidence, research findings, and the overall evidence base play an increasingly important role in the evaluation of certain dietary supplements. In addition, healthcare professionals have gained the opportunity to recommend specific supplements when appropriate indications are present and established requirements are met.
Let us examine how the effectiveness of dietary supplements is currently confirmed in Russia, the role of clinical research, and the criteria that should be considered when selecting products.
What are dietary supplements?
Dietary supplements are sources of vitamins, minerals, amino acids, plant extracts, and other biologically active substances intended to complement the diet.
It is important to understand that dietary supplements are not classified as medicinal products and are not intended to treat diseases as a standalone therapy. Their primary purpose is to correct deficiencies and support the body's physiological functions.
How have requirements for dietary supplements changed in Russia?
In recent years, government regulation of the dietary supplement market has become more stringent.
Since 2025, Russian legislation has provided for the possibility of healthcare professionals recommending certain dietary supplements when appropriate indications are present. To qualify, products must meet established requirements for quality and effectiveness.
In addition, evaluation criteria have been introduced that consider not only product safety but also the availability of scientific data supporting the claimed effects of the supplement.
This approach contributes to the development of a more transparent and scientifically grounded dietary supplement market.
Are clinical studies mandatory for dietary supplements?
One of the most common questions concerns the need for clinical research.
Unlike medicinal products, for which clinical studies are a mandatory stage of state registration, the requirements for dietary supplements remain different.
When assessing effectiveness, various types of evidence may be considered, including:
- results of the manufacturer's own studies;
- clinical observation data;
- publications in scientific journals;
- information contained in clinical guidelines;
- evidence regarding the active ingredients included in the product.
How is the effectiveness of dietary supplements evaluated?
Assessing effectiveness always requires a comprehensive analysis of research findings.
Statistical Significance
Statistical significance indicates the likelihood that observed differences between groups are not due to chance.
However, a statistically significant result does not always mean that the effect provides a meaningful benefit to individuals.
Clinical Significance
Clinical significance reflects the practical value of an effect.
For example, changes in laboratory parameters may be statistically significant while not resulting in improvements in well-being, quality of life, or reductions in the risk of complications.
Quality of the Evidence Base
The level of evidence is of particular importance.
The most reliable sources generally include:
- systematic reviews;
- meta-analyses;
- large randomized studies;
- clinical guidelines based on the analysis of the totality of available scientific evidence.
Despite the growing body of evidence, studies of dietary supplements often have limitations.
The most common include:
- a small number of participants;
- short follow-up periods;
- absence of a control group;
- use of indirect effectiveness endpoints;
- research funded by the product manufacturer.
How should evidence of dietary supplement effectiveness be evaluated?
When selecting a dietary supplement, it is advisable to consider the following factors:
- availability of published research;
- quality of the study design;
- adequate sample size;
- presence of a control group;
- publication in peer-reviewed scientific journals;
- consistency with current clinical guidelines.
The Russian dietary supplement market is gradually moving toward more rigorous standards for evaluating quality and effectiveness. Today, the scientific evidence base is becoming one of the key factors influencing the confidence of both healthcare professionals and consumers.
At the same time, dietary supplements are still not subject to the same registration and research requirements as medicinal products. Therefore, an objective assessment of effectiveness is only possible through analysis of the entire body of scientific evidence, including clinical studies, systematic reviews, meta-analyses, and professional guidelines.
This approach is consistent with the principles of evidence-based medicine and enables informed decisions regarding the use of dietary supplements.
Our team is also prepared to organize and conduct clinical studies of dietary supplements at our own clinic as well as at other medical centers and healthcare institutions appropriate to the intended area of application. All studies are conducted in accordance with modern requirements for scientific methodology, data collection, and product effectiveness assessment. We support projects at every stage, from protocol development to the preparation of final documentation and analytical reports on study outcomes.