There's only one thing on that list which isn't food/seasoning/salt: methylcellulose. However, it is derived from plant cellulose, and is basically a semi-synth

There's only one thing on that list which isn't food/seasoning/salt: methylcellulose. However, it is derived from plant cellulose, and is basically a semi-synthetic equivalent of pectin, a natural product (or other dietary fibers). Methylcellulose is better than pectin because it's just easier to get standard properties. There's nothing harmful about it and the body treats it exactly the same as pectin - it passes straight through like other dietary fiber.