Table 4.

Clinical recommendations based on diet for NB-UVB phototherapy in patients with psoriasis.

NB-UVB CLINICAL RECOMMENDATIONS BASED ON DIET
Omnivores	The starting dose is established after MED evaluation and corresponds to 70% of the MED; then, the dose is increased by 20% (if no erythema) or by 10% (in case of erythema) up to a maximum dosage of 3 J/cm2
Vegetarians and Vegans	The starting dose is established after MED evaluation and, in case of a low MED (20–25 mJ/cm2), corresponds to 40% of the MED; then, the dose is increased by 10% (if no erythema) up to a maximum single dose of 2.5 J/cm2. In case of erythema the dose is maintained constant

MED: minimal erythematous dose.