junk

I know it is sort of counter productive to even ask this but I am wondering what would be the best option for someone wanting to cut down in terms of what foods I should be eating? I know to stay away from things like red meat and a lot of junk food like pizza and that sort of thing...

Over the past 20 years I've tried a lot of different products that are cream products most of them have been junk but there have been a few over the years that have been excellent products is there one that you can recommend today that would work good for me?