Im trying to get my dad to lose weight but he won't listen.. any advice?

My dad is now 53 and I really want him to start losing weight. It's not like he's so obese he can't walk but he does NO exercise what so ever. We basically have an entire gym at our house so there's no excuse.

Does anybody know how i could try and push him to get active? I make him his meals and buy the groceries so I know he eats healthy. I just need to get him moving more often.

Every morning, lunch and night he'll come home, put his feet up and watch the news. I even brought our bike up to the living room to try and keep the thought in his head lol
Im trying to get my dad to lose weight but he won't listen.. any advice?
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