Vauhtikarkki is my go-to energy source in all ultra's. Never any stomach problems, the Salmiakki flavour is absolute gem. If you are into salmiakki things.
Eaten with ease while training. No stomach pain.
So far those I have tasted were good.
Not five star as I would have liked to replace a taste I don't like (coffee)
8 flavour Energy Chew bundle
Toimii paljon paremmin kuin geelit!