They potentially contain health giving trace minerals that help to make up their delightful colors. There has been evidence that hybridized seeds do not pick up all the trace minerals, although all the minerals are in the soil.
Look for berries from non-hybrid seeds. Organic fruits ensure no synthetic chemicals or pesticides are used. Sustainably grown is another option that avoids the chemicals and works with nature.
Sometimes I am able to find wild-grown berries, even wild-organic berries. This means they are open polinated and should be packed with nutrients. I have found them on the Internet or at various specialty food stores, like Trader Joe's, and they are in the frozen state.
Balance and Variety are Key
If you eat a variety of berries and small amounts of them, you should do well. The body is very complex and balanced in it's ideal state. You are eating to maintain that balance so you can funcion well when awake and sleep soundly when it's time to do that.
When you stick with the same few foods month-in / month-out, you are losing your complexity and slowing the body down. Life goes down hill and by the time you reach 60 or 70, the body doesn't move around very well any more.
Here are some healthy fruits that offer great nutrition if grown properly. Their color pigments make up many of their health giving nutrients. I've listed some significant nutrients to give you an idea how they are different.
Berries can be expensive but just a little can go a long way if you keep in mind that healthy fruits mean variety.
When I was in my 30's, I went through a period where I had very low energy. I worked out a diet based on a basic principle of energy. The diet consisted of a tremendously wide variety of fruits, vegetables, nuts, grains, seeds and herbs. I ate very small amounts daily to ensure all the various parts of my body were getting the nutrition they needed. It worked and my physical energy increased dramatically.
Please feel free to email me if you have questions or comments. I am always happy to respond.