I got a blood test for serum Vitamin A and had 81 μg/dL which was higher than the normal range (18-77).
Does anyone know if it's like calcium where a high level in the blood can actually mean a deficiency in the diet or if it's the more intuitive "high serum level = surplus in diet"?
I supplment 5,000 IU of Vitamin A every day and I'm wondering if I need it.
Does anyone know if it's like calcium where a high level in the blood can actually mean a deficiency in the diet or if it's the more intuitive "high serum level = surplus in diet"?
I supplment 5,000 IU of Vitamin A every day and I'm wondering if I need it.