Is this a demonstration that there is a working circalunar clock in humans, operating endogenously, and independently from the actual moon?

Mice and rats endogenously synthesize ascorbate; humans and guinea pigs have lost this capacity and rely fully on dietary sources.

Credit: Author ICLs are notoriously toxic to cells and can occur endogenously, for example through lipid peroxidation, or through exposure to exogenous agents.