Will calorie restriction cause yellow skin?

No: But i bet what you're doing is eating a lot more vegetables with your diet and the colorful vegetables can yellow the skin. If that's not it, then you need to get your blood tested for liver problems because you may be jaundiced. Also make sure you're not dehydrating because that could trigger a jaundice if you have gilbert's disease.

Yellow skin: Yes if your liver is not working well. As a rule your skin should not be yellow if it is not usually yellow. This can be a sign of vitamin deficiency or liver disease. If you eat too many yellow veggies it can happen also. See your md immediately if this is a change especially if your pee is also turning darker.