The best case is if ...

[Saki6]

To blast belly fat, do this for 20 minutes a day, Harvard study says

For those battling belly fat, weight training may be a better option than aerobic exercises like jogging and running, a new study suggests. The very best choice would be a combination of the two.Men who did 20 minutes of daily weight training had less of an increase in age-related abdominal fat...

on.today.com

The best case is if you combine high-intensity cardio workouts with weight lifting, DeAngelo says. “That’s better than going out for a long walk or jogging endless miles,” he adds.

The best case is what? Is there anything missing?

 

[Tarheel]

You'll get the best results if you do that.

 

[Saki6]

Is it correct to say "The best case is that you combine ..."? Is it wrong to say "The best case is if you combine ..."?

 

[emsr2d2]

Is it correct to say "The best case is that you combine ..."? Is it wrong to say "The best case is if you combine ..."?

I don't find either of them natural. We usually use "the best case" in the phrase "the best case scenario" and that's not appropriate in this piece. I'd expect something like "The best method" or "The best solution".

 

[jutfrank]

What he says is wrong. He's talking about what to do for the best results.