How to lose 70 pounds in ten months?

There are many ways.
Intermittent fasting works (several versions)
Low carbohydrate diet works
Walking everyday for a minimum of 30 minutes works.
Even LCHF low carb high fat works.
Just restricting calories does not work, it just lowers metabolism.

Atkins diet or Atkins 40

lose 7 pounds a month

Nutra system lol