[dfwgator]

There are issues with running marathons. It’s not healthy to do long-term.

Better to do, short, high-intensity workouts.

[ConservativeMind]

That is exactly right!

[Neidermeyer]

Better to do, short, high-intensity workouts.
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High Intensity with sufficient rest periods (measured in days) is the best ... look at the natural world ,, gazelles have great speed but basically “idle” through most days ,,, big cats.. enormous speed and energy output followed by long rests... I have puppies now they burn enormous amounts of energy playing and collapse in a heap sleeping...

But even without added exercise getting the diet right will get you 80%+ of the way to your goals.