#2, for example:Clinging Quality:
In the process of forming gels, the seeds may also gather up impurities in the liquid. The ancient Aztec people, if they got dirt or ash in their eye in battle, would actually allow a Chia Seed to be dropped into their eye. (This is not recommended, you are not an ancient Aztec warrior) The seed would then go to work absorbing their eye-water and any debris along with it. The seed and debris could then be easily removed and the eye was clear again.
The same thing happens when dry seeds are added to your stomach. Particles, bacteria and liquids are 'captured' when the seeds form their gel.