Fatty acids aren't pure fat and same for glycerol molecules. You may not be consuming straight fat, but things that create fat in your system.
Through the roots which soak up the water from surrounding soil
The moon's gravitational force
You can do golden rice. It was genetically modified to produce beta carotene, which rice does not usually have. When metabolized by the body beta carotene is turned to vitamin A which is essential to human vision, immune systems, and healthier skin