What foods can be eaten while on the keto diet?

1
What foods can be eaten while on the keto diet? 

• The low carbohydrate, moderately rich protein,
  and high-fat keto diet loses weight healthily.
  Besides, it treats diseases like diabetes,
  epilepsy, malignancies, and Alzheimers. The
  healthy meals readily fit into this type of diet
  are avocadoes to lower cholesterol, eggs rich
  with vitamin-B, coffee and tea to fight against
  type 2 diabetes, cheese, chocolate, and cocoa
  powder, and Greek yogurt.

2
What foods can be eaten while on the keto diet?