The only bad thing with cinnamon is how expensive it is. 5g is quite a lot. With regards to pineapple, I get mine frozen, I recommend getting either fresh or frozen pineapple and staying away from canned!
All of the supplement vendors/merchants in my country carry it. I usually get a big bag, 4 kilos, for just over 15 dollars. I do have a training log: Nordic Blood: Climbing And Lifting / Lifting And Climbing