- Food poisoning is a kind of illness
- Bacteria can cause people to become ill
- So, bacteria / viruses cause food poisoning

- Bacteria / viruses cause food poisoning
- If something causes something else then then reducing that something will prevent that something else
- Therefore, reducing bacteria in food prevents food poisoning in people

- Adding heat to something kills viruses / bacteria in that something
- Killing something reduces the amount of that something
- Hence, adding heat to something reduces the bacteria in that something

- Reducing bacteria in food prevents food poisoning in people
- Adding heat to something reduces the bacteria in that something
- Therefore, adding heat to food prevents food poisoning

- Adding heat to food prevents food poisoning
- Cooking food requires adding heat energy to the food
- So, cooking food prevents food poisoning

- Cooking food prevents food poisoning
- Preventing something is a kind of method of protection against that something
- Therefore, cooking food protects against food poisoning

Therefore, cooking food protects against food poisoning
Question: One way to protect against food poisoning is to
Context: - Cooking food requires adding heat energy to the food 
- Preventing something is a kind of method of protection against that something 
- Adding heat to something kills viruses / bacteria in that something 
- Killing something reduces the amount of that something 
- Food poisoning is a kind of illness 
- Bacteria can cause people to become ill 
- If something causes something else then then reducing that something will prevent that something else