I ate vegan for a few months trying to help a health issue I was having. I can't say truly vegan because I was eating meat or eggs maybe 1 or 2 times per month.
I will say after the first 2 weeks I felt amazing. I'm sure packing your self full of fruit and vegetables every day for weeks on end has huge health benefits with all the antioxidants and micro nutrients.
A few months in, I became weak. Really weak. Picking up heavy things was noticeably difficult and harder then it should be.
Now after that experiment, I have found that lots of quality wild and grass fed meats with tons of fruit and vegetables is the way to go for me personally. 
Eating "vegan" for that time, it taught me tons of different ways if cooking and new foods. None of that fake meat garbage, but use of different vegetables, mushrooms, quinoa and so forth. Definetly good to try new things.
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