One of my favourite pre-workout snacks is 1/2 a cup of fresh squeezed orange juice, 1/2 cup of coconut water and a few spoonfuls of chia gel. I keep chia seeds soaked in a jar in the fridge all the time. I love them I find them energizing and great for digestion. They are also fantastic for hydration and protein.
I make chia gel by mixing 1 tbsp chia seeds with 1 cup filtered water. I keep the mix in the fridge and add it to smoothies, and juices.
The closest thing I have had to chia gel would be bubble-tea although the tapioca beads in bubble tea are much larger and chewier but as far as mouth feel it is similar.
Chis seeds really don't have much of a taste and some people use them to make chia pudding (kind of like tapioca pudding) using almond milk or juice. I've made it using juiced watermelon and strawberries and both were quiet good. They are considered to be a healing food and can be great for anyone who has intestinal issues because they can help heal the mucus layer in the digestive tract and provide and can help promote the growth of healthy gut flora. Chia seeds aren't just for your terracotta pet any more!