The exact timing is not clear.
Firstly, the symptoms of yellowing of the palms of the hands are not necessarily caused by the long-term consumption of large amounts of carrots, pumpkin, etc. It needs to be clear that there are no other problems such as jaundice or medication.
Secondly, if such foods are consumed in large quantities over a long period of time, it does lead to high concentrations of carrots in the blood and tissues, causing yellowing of the skin on the palms of the hands. The yellowing of the palms of the hands can gradually subside when they are no longer consumed, but it is not possible to determine the exact timing, which is influenced by the concentration of carotenoids and the body’s metabolic capacity.