Even by that logic you should still dilute your blood, because if you don't you will accumulate plastic faster... You will see a benefit for any and all harmfu

Even by that logic you should still dilute your blood, because if you don't you will accumulate plastic faster... You will see a benefit for any and all harmful substances for which blood tests exist. Because the blood test implies blood levels being a proxy for the substance so it either accumulates there or leaches into it.