the sentence that contains the main idea is that "chocolate has been found to be a cause of weight gain."
the paragraph is pointing out the fact that it has been <em>found </em>to cause weight gain but the paragraph goes on to say that some of the researchers don't dive deep enough.
i hope that was helpful :D
All the w's like what, where, when, why and how?
1. So (in between)
2. Since (in the front)
3. So (in between)
4. But (in between)
5. And (in between)
6. So (in the front of the sentence)
7. After/before/when (it could be any of those in the middle
Hope this helps ya
<span>starting in medias res if this is the excerpt i think it is
</span>
D: Juno, now reconciled to him, gave him her daughter Hebe in marriage.