What are the types of foods that cause heartburns?

Fry-oil is referred to oil that has been previously used. Is it okay to reuse such oil?

I’ve recently started having strange allergies to foods I used to enjoy eating. What is the reason for the new allergies development?

Is the Coca-Cola Zero sugar okay for someone trying to lose weight?

How do restaurants sort their leftover food?

What low-carb/keto diet plan is advisable for a beginner to start with?