3 domains - 3 similar keywords

Hi!

First question here...

So, I have three similar keywords like:

weight loss diet
weight loss marriage
weight loss pills

and I am thinking of using three different domain names containing the exact keywords.

My confusion comes when I have to decide if I should have 3 separate websites with the corresponding info or I should create only one website with all info and redirect all domains there.

I would suggest having 3 different sites, so that the URL of the site matches better with the content. It's better to overcome for potential visitors. But that's just my opinion.

this makes sense...However, I am thinking that if all information is gathered in one website then this website would be closer to be considered an authority website to its subject...:s