what should i stock up on in case of pandemic

WHO recommends consuming a minimum of 400 g (i.e. 5 portions) of fruits and vegetables per day. Citrus fruits like oranges, clementines and grapefruit are good options, as well as bananas and apples, which can also be cut into smaller pieces and frozen for later consumption or to add to smoothies.

Root vegetables such as carrots, turnips and beets, as well as vegetables like cabbage, broccoli and cauliflower are relatively nonperishable. Garlic, ginger and onions are also great options to keep at home, as they can be used to add flavour to a variety of meals.

• Every day, eat a mix of wholegrains like wheat, maize and rice, legumes like lentils and beans, plenty of fresh fruit and vegetables , with some foods from animal sources (e.g. meat, fish, eggs and milk).

• Choose wholegrain foods like unprocessed maize, millet, oats, wheat and brown rice when you can; they are rich in valuable fibre and can help you feel full for longer.

• For snacks, choose raw vegetables, fresh fruit, and unsalted nuts.

Well, yes.
The virus that causes COVID-19 travels in saliva, so, sure, swapping spit with an infected person could transfer the virus to you.

Avoid foods that are high in salt and sugar. Limit the number of soft drinks and other drinks that are high in sugar. Instead of sweet snacks like cookies, cake, and candy, choose fresh fruits.

• Healthy cooking oils, such as canola or olive oil.
• Balsamic vinegar, for flavor.
• Eggs. They last longer than many cold-storage foods.
• Milk. Consider shelf-stable milk or nondairy milk.
• Family packs of lean meat, fish and chicken. Separate these into smaller portions and freeze until needed.

Getting COVID-19 after you've been vaccinated or recovered is still possible. But having some immunity -- whether from infection or vaccination -- really drops the odds of this happening to you.