Importance of Phytochemicals for better Human Health Care Management

Research Blog:

Written by

Saloni Jaiswal¹ and Shiv Om Pratap²

Ph. D. Scholar, Institute of Biological Sciences
Associate Professor, Institute of Biological Sciences
SAGE University, Indore (M.P.)

Phytochemicals are often considered as the link between the food and pharmaceuticals for the regulation of metabolic pathways in the living, significantly. Nowadays, food products that are naturally rich in such phytochemical compounds are also known as functional foods and nutraceuticals. Phytochemicals are bioactive components that help maintain and promote better growth. Current research has shown the medicinal properties of such phytochemicals is very important in the growth of living. Phytochemicals have various pharmacological effects on the body, such as anti-inflammatory, anti-allergic, antioxidant, antibacterial, antifungal, antispasmodic, anti-cancer, hepatoprotective, lipid-lowering, neuroprotective, blood pressure regulating, anti-aging, and protection against diabetes, osteoporosis, DNA damage, heart diseases, and UVB-induced cancer. Overall, phytochemicals not only act as protectors in our daily nutrition but are also a strong source of potential for the development of new and safe medicines. Future research on their bioavailability, molecular mechanisms, and synergistic effects will aid in the creation of evidence-based nutraceuticals and functional foods, strengthening global health management. Current study confirmed the significance of these phytochemicals during the routine consumption of various fruits and vegetables, which help us to live a long and disease-free life. Phytochemicals have bigger impact on our body healing against various microbial infections and physical disorders.

Phytochemicals are naturally occurring compounds synthesised by plants and encompass various functional elements, including polyphenols, flavonoids, and vitamins. The majority of foods, including whole grains, beans, herbs, fruits, and vegetables, contain phytochemicals that are important for nutraceuticals. Consuming these physiologically active plant-derived ingredients has been linked to a lower risk of developing chronic illnesses such as coronary heart disease, osteoporosis, and cancer. Anti-inflammatory, antiallergic, antioxidant, antibacterial, antifungal, chemopreventive, antiaging, and anti-osteoporosis are some of the specific pharmacological effects they have on human health. (Agrawal et al., 2023)Phytochemicals are not essential nutrients and are not required by the human body for sustaining life, but have important properties to prevent or fight some common diseases [6]. Because of this property, many studies have been undertaken to reveal the health benefits of phytochemicals. In this review, we provide an overview of the role of phytochemical compounds present in medicinal herbs in relation to disease management and human health. The common sugars, amino acids, chlorophylls, purines, and pyrimidines of proteins and nucleic acids are examples of phytochemicals categorized as primary constituents. Alkaloids, flavonoids, terpenes, phenolics, lignans, plant steroids, curcumines, saponins, and glucosides are among the other substances categorized as secondary constituents. Phenolics are thought to be the most prevalent of these secondary constituents, accounting for 45% of the secondary phytochemical constituents of plants, followed by terpenoids and steroids (27%), alkaloids (18%), and other substances (10%).

Phytochemicals are important in nutraceuticals. They are the bioactive ingredients that preserve health and act as a link between the pharmaceutical and food sectors.(Nwozo et al., 2023)These phytochemicals have enormous therapeutic potential for treating a variety of illnesses, either by themselves or in combination. Because they protect against a wide range of illnesses and conditions, including cancer, coronary heart disease, diabetes, high blood pressure, inflammation, microbial, viral, and parasitic infections, psychotic diseases, spasmodic conditions, ulcers, osteoporosis, and related disorders, phytochemicals with nutraceutical qualities found in food are extremely important. They also strengthen the immune system, act as a diuretic, are pain-relieving, and aid in digestion.

Phytochemicals are mainly classified into categories like phytoestrogens, terpenoids, carotenoids, limonoids, phytosterols, glucosinolates, polyphenols, flavonoids, isoflavonoids, and anthocyanidins. These biochemical compounds include various nutrients, dietary supplements, special diets, genetically modified foods, herbal products, and beverages. Most foods, such as whole grains, legumes, fruits, vegetables, and herbs, are rich in phytochemicals. Phytochemicals are formed during the normal metabolic process in plants. Their composition is complex in structural basis and depends on the nature of plant species. Higher plants store them as a reserve in the fruits or seeds found responsible for the various and effective medicinal properties. These medicinal effects are the result of the interaction of secondary metabolic products bio-synthesized  in the plants. In the future, phytochemical-based drugs will play a significant role in the treatment of cancer, heart disease, diabetes, neurological disorders, and all other body-related diseases.

The physiological processes of photosynthesis, respiration, growth, and development in plants depend on primary metabolites. Secondary metabolites are specific phytochemicals that don't play direct roles. Secondary metabolites are important because they attract pollinators and shield plants from diseases and herbivore attacks. Flavors, dyes, fibers, glues, oils, waxes, pharmaceutical medications, and fragrances are just a few of the many uses for secondary metabolites. There is currently little scientific data on how phytochemicals affect human health and illness prevention. To better understand the role of phytochemicals in human health and the prevention of chronic diseases, more researches and clinical trials are required.