GMAT Sentence Correction (SC) | Two new studies indicate that many people become obese more

I see many people suggesting - As a general rule or a litmus test - we have to replace "Due to" by "Caused by"

So lets take the same sentence as an example :-

Two new studies indicate that many people become obese due to the fact that their bodies burn calories too slowly

After replacing :-

Two new studies indicate that many people become obesecaused by the fact that their bodies burn calories too slowly

My Question - is Due to correct in the original underlined sentence.
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