The more colorful my meals are, the happier I get. I try to vary the colors of the fruit and vegetables I eat throughout the day. This is a low-tech way to try and vary the nutrients in my diet.
I have a no-scientific-data-supported theory that if you need special goos/gels, pain relievers, "protein" shakes to make it through your workout or sport of choice, that maybe you are training too hard and you need to let your body rest instead of taking a bunch of anti-inflammatories or supplementation. You can vary your diet to accommodate the training difference. I know when I go skiing, I tend to eat a lot more protein (in real food form) than in my regular non-skiing life.
My ski partners ski all day and all week without rest, and then load up on anti-inflammatories at night, when they just could have turned in a couple of hours early in the ski day or taken a rest day and not pushed so hard. I'm talking skiing 4-5 hours instead of 6-7, for example, so it's still a good ski day without killing your body and risking injury. But I just do my thing and let them do theirs...I don't like "fake" food.