What are nutraceuticals and what benefits do they offer?

Today, health and wellbeing are fundamental aspects of our lives, and nutrition plays a crucial role. However, a balanced diet is not always enough to provide all the nutrients and beneficial compounds our bodies need. This is where nutraceuticals come into play, products that have revolutionized the way we take care of our physical and mental health. These products, which combine the concepts of ‘nutrition’ and ‘pharmaceuticals’, can be valuable allies in improving overall wellbeing and helping to prevent a range of health conditions.

What is a nutraceutical?

The term ‘nutraceutical’ was coined in 1989 by Dr. Stephen De Felice, combining the words ‘nutrition’ and ‘pharmaceutical’. The term refers to the ability of certain substances, mainly of natural origin, to support and optimize the body's physiological processes. In other words, a nutraceutical is a product that incorporates active ingredients extracted from foods or plants—or even synthetically produced substances—with the aim of improving overall health, helping to prevent disease or, in some cases, supporting the treatment of certain health conditions.

For a product to be considered a nutraceutical, it must meet certain fundamental criteria. Firstly, it is usually of natural origin, primarily obtained from plant-based sources, although it may also include vitamins, minerals and chemically synthesized compounds. In addition, extraction and purification methods must preserve the chemical structure and biological properties of the compound in order to ensure its effectiveness. Finally, there must be scientific evidence supporting the nutraceutical's positive effects on health, whether in terms of prevention, maintenance or improvement of physiological functions.

Unlike medicines, nutraceuticals are not designed to directly treat or cure diseases. Instead, they play a supportive role aimed at promoting health and helping to prevent certain conditions. Despite their potential benefits, they should be consumed with caution, as some may cause adverse effects or interact with certain medications. Today, nutraceuticals are also part of the knowledge covered in professional training programs such as an MBA in Healthcare & Pharma.

Examples of nutraceuticals used in healthcare

The field of nutraceuticals is broad and diverse, ranging from simple vitamins to complex plant extracts. These products are available in different formats, including capsules, tablets and enriched functional foods.

One of the most important groups of nutraceuticals is antioxidants, which help reduce oxidative stress and neutralize free radicals, helping to prevent cellular damage and premature ageing. Some of the most notable plant-based sources include fresh fruits such as strawberries, red grapes and berries, which contain vitamins such as C and A as well as flavonoids. Nuts and seeds are also excellent sources of omega-3 fatty acids and minerals, offering protection against cardiovascular diseases. In addition, some specific supplements contain coenzyme Q10, a powerful antioxidant used to combat cellular ageing and support mitochondrial function.

Another example is essential fatty acids such as omega-3 and omega-6, which play a key role in brain function, cardiovascular health and the body's inflammatory response. They are found in oily fish such as salmon, mackerel and sardines, as well as in nuts and seeds such as walnuts and chia seeds. For people who do not obtain enough through their diet, capsule supplements are available to facilitate intake.

Vitamins and minerals are also included among nutraceuticals. Vitamin D, which is essential for calcium absorption and bone health, can be obtained through sunlight exposure and supplements, particularly in areas with limited natural light. Vitamin B8, or biotin, is essential for cell development and is found in foods such as eggs, liver and vegetables. Minerals such as calcium, magnesium and zinc are also commonly included in nutraceutical products because of their role in supporting a variety of bodily functions, from muscle contraction to immune system function.

In the field of digestive health, probiotics and prebiotics have become increasingly important because they help maintain the balance of intestinal flora, which is relevant to digestion, nutrient absorption and immune function. Probiotics, found in fermented foods such as yogurt, kefir and miso, contain live microorganisms that benefit gut health. Prebiotics, meanwhile, are substances such as inulin, found in foods including artichokes, garlic and onions, which serve as food for beneficial gut bacteria.

Finally, many nutraceuticals are derived from botanical extracts with specific properties. One example is garlic extract, known for its effects on blood circulation and lipid metabolism, although it should be used cautiously because it can interact with certain medications. Another is St. John's wort, which is used to support mood but can reduce the effectiveness of some medicines, including contraceptives. Centella asiatica extract is also widely used in products designed to improve circulation and protect blood vessels.

Types of nutraceuticals and their benefits

Nutraceuticals can be divided into two broad categories according to their composition and function. On the one hand, there are traditional nutritional supplements, including vitamins, amino acids and essential minerals. These products are generally safe when used in appropriate doses and are designed to complement the diet and help prevent nutritional deficiencies. Their contribution can support the immune system, improve energy levels and assist metabolic processes. They can be particularly useful during periods of increased nutritional demand, such as pregnancy or ageing.

On the other hand, there are botanical compounds and extracts derived from plants or other natural sources, which supplement the diet and exert specific effects on the body. These products can influence physiological processes and, in some cases, support the management of certain health conditions. However, their inclusion in the nutraceutical category has been subject to debate, as some may produce effects similar to medicines and therefore require precise dosing.

Unlike medicines, nutraceuticals do not directly treat or cure diseases, but rather act as supportive or preventive products. Although many studies have demonstrated potential benefits, their effectiveness can vary from person to person. In addition, some nutraceuticals may cause adverse effects or interact with other medications, so professional supervision is always recommended.

Nutraceuticals combine nutrition and pharmacology, providing valuable tools for supporting physical and mental health. With appropriate professional advice, they can become useful allies in disease prevention and the promotion of a healthy lifestyle.