"Clean" food means something very different than "clean" energy.
If I'm looking for clean food, my standards are very different than someone looking for clean energy. I know folks who wouldn't think lab grown meat was very clean simply because it was created in a lab.
All that to say: you're not wrong, but clean means something very different to the food-conscious person shopping at their local co-op.
I'm confused, it's not clean because it was grown in a lab, or is there some other factor?
Our bodies don't give two shits whether the food we eat was grown outside in a natural environment or in a lab - as long as it's chemically the same then there can't be any difference to how we absorb it.
Edit: Ok, after going deeper onto this website it mentions doing juice cleanses and ridding yourself of "toxins". Stay as far away from this website as possible.