**2. An overview of MIND diet**

As food is consumed as part of a dietary pattern, it is important to consider the interactions and associations of whole dietary approaches. Predominantly, three dietary patterns are put forward to have a beneficial impact on cognitive function. They are the Mediterranean diet (MedDiet), the Dietary Approaches to Stop Hypertension (DASH), and the MedDiet-DASH Intervention for Neurodegenerative Delay (MIND). At present, the MedDiet and DASH are advocated for their cardiovascular benefits [13] but also advisable to promote cognition in them and because of the association between the risk factors of vascular problems with dementia [14]. A relationship between adherence to MedDiet and cognitive function was proved by several epidemiological studies and clinical trials [15, 16], and the World Health Organization (WHO) has included this dietary pattern in their guidelines to reduce the risk of cognitive decline and dementia; on the other hand, it is conditionally considered the potency of the recommendation [2]. Even though it has been less comprehensively investigated in association with cognition and other cardiometabolic health outcomes, an amalgam of the MedDiet and DASH diet, the MIND diet, is also being promoted for brain health [17].

The potentially effective preventive strategies are dietary interventions because nutrition is a modifiable factor for intervention in cognitive disorders. The MIND diet aims to lessen dementia and the decline in brain health that is prevalent as people get older. The MIND diet is the combined aspects of two accepted diets, the Mediterranean diet, and the DASH diet. Many researchers consider the Mediterranean and DASH diets as one of the healthiest diets. Studies have proven that they can lower blood pressure and reduce the risk of heart disease, diabetes, and numerous other diseases also. The diet is tailored after the Mediterranean and DASH diets but with modifications based on the most persuasive findings in the area of diet for dementia.

The MIND diet combines the DASH and Mediterranean diets to create a diet aimed at reducing the risk of dementia and the decline in brain health that people often experience as they age. The MIND diet encourages the consumption of all kinds of vegetables, berries, nuts, olive oil, whole grains, fish, beans, poultry, and a moderate amount of wine. To improve cognition, currently, the MIND diet is found to be superior and beneficial when compared to various other plant-based diets including the Mediterranean, Dietary Approaches to Stop Hypertension, Pro-Vegetarian, and

Baltic Sea diets. MIND diet adherence is possibly related to an improved cognitive function in elderly people.
