The global lockdown due to the recent outbreak of COVID-19 could signal the shift in many a global phenomenon including changes in eating habits around the world. This is because lockdown in itself restricts the availability of foodstuff that are normally available to all at all time. Rather, most purchases during this time are more influenced by consumer income levels and availability of food rather than knowledge on the healthiness of the food itself. However, this period is crucial for many groups of people: for kids because of their increased exposure to television advertisements aimed at the sale of junk foods, those in their adolescence because it__ampersandsignrsquo;s the age of habit development and the wrong habit gained during this time would go on to influence their adult life. In general, it could lead to apparent transmission of epigenetic and/or phenotypic variation down to the next generation cause major changes in lifestyle leading to increased obesity and hyperglycaemia in many countries. This study reviews scientific work in the field of eating habit development, factors influencing these habits, the effect of unhealthy eating habits and its effect on the youth, adults and shift worker. The authors think that physical activity, proper eating habits, nonindulgence in binge eating could positively affect eating habits during the COVID lockdown.