The Darker the Berry, the Sweeter the Juice

I've been so busy with school, but now it's spring break. I have time to relax and update this blog! I also want to note that a friend and I are going to attempt a research project that I will be telling you about later.

I was going through my usual articles and I've decided to abide by a rule I just now made up:

THE DARKER IT IS, THE BETTER.

For example, if you have the option of a dark grape or a white grape, eat the dark one:
See this article

Or if you have the option of red beans or black beans... eat the black one!
See this article

Can you think of any other foods that this rule applies to?