According to the research titled ‘World Population Prospects: the 2019 Revision, United Nation’, the sum of individuals aged 65 and older is expected to climb by 16% by the year 2050, which is equivalent to one in every six individuals. According to this data, the world population that is becoming older has been expanding at an exponential rate. The ageing of the people has a number of important repercussions, one of which is an augmented risk of cognitive damage and age-linked neurodegenerative disorders. These diseases include Alzheimer’s disease, mild cognitive impairment, Parkinson’s disease, vascular dementia and stroke. These conditions are associated with advancing age, and it is anticipated that by the year 2040, there will be roughly 81.1 million people who are afflicted with these diseases or conditions. The fact that there is a direct connection between lifestyle choices, dietary patterns and neurodegeneration brings to light the possibility of nutraceuticals serving as preventative therapy for those who suffer from neurological diseases. It is also important to take into consideration nutraceuticals that contain bioactive components that have antioxidant and anti-inflammatory characteristics because these complexes can help reduce the effects of cognitive impairment. Nutraceuticals are chemicals or compounds that have a beneficial outcome on the body’s physiological processes and offer protection against chronic diseases. Nutraceuticals, when combined with contemporary medications that are currently available, have the potential to improve our immune system and overall health by reducing cognitive deficiencies in older persons and providing protection against age-related cognitive diseases. The authors have provided a synopsis of a few of the nutraceuticals that have been the subject of extensive investigation. These nutraceuticals include curcumin, berberine, resveratrol and others that are established to play a role in age-linked illnesses and brain ageing.