October 9th to 19th is National Nutrition and Obesity week, under this year’s theme good nutrition for good immunity. 
Overweight and obesity have been linked to more severe COVID-19 outcomes, along with diet-related non-communicable diseases like hypertension and Type 2 diabetes.
According to the heart and stroke foundation, In addition to good hygiene practices, one of the best defences against the ongoing threat of COVID-19 is a mostly plant-based diet. 
Diets that are based on preparing meals at home from whole grains, fresh fruits and vegetables, legumes, nuts and seeds can help to support our immune systems and overall health, as well as reduce our intake of unhealthy fats, food additives and added sugar and salt.  
The National Department of Health points out that unhealthy diets and lifestyles are amongst the top challenges we face in the 21st Century creating a significant burden on our country.