The 70-year-old, who stood at 5'3", weighed 200 pounds after years of mindless snacking and was on blood pressure medication. Fast-forward eight years, and MacDonald is a 78-year-old fitness influencer with 1.9 million followers who can hip thrust 235 pounds. MacDonald started going to the gym five times a week, where she would do 15 minutes of cardio on a machine, followed by free weights. MacDonald shared some of her biggest tips for getting fit and losing weight at any age. I knew I wanted to lose weight, but I wanted also to get strong," she said.

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