Yawning: Vitamin D deficiency is related to daytime drowsiness

Feeling a little sluggish during the day? You may need a glass of milk or
D
d-fortified snacks. A new study published in the Journal of Clinical Sleep Medicine found that people who lack vitamin
D
are more likely to go drowsy during the day than those who have adequate vitamin
D
levels.researchers from Louisiana State University measured serum
25-
hydroxyvitamins
D
(
25OHD
) levels in
81,
patients who visited sleep clinics complaining of sleep problems and nonse specific pain.
25OHD
below
20 ng / mL
vitamin
D
deficiency. Sleepiness was
using
Epworth's narcolepsy scale score.in patients who
vitamin
D
, the lower the level of vitamin
D
and the deeper the degree of daytime drowsiness. For black patients with vitamin

deficiency, the average daytime excessive drowsiness score was higher, while the
25OHD
was lower.patients
normal
D-levels also benefited from higher levels. In these patients, low levels
vitamin
D were associated with daytime drowsiness.researchers found that excessive daytime drowsiness was directly related to
25OHD
blackness in black patients with vitamin
D
deficiency, but not to white patients with vitamin
D
deficiency. For whites, the higher
levels
vitamin D, the more likely they are to go to sleep during the day, suggesting that the relationship between vitamins and sleep is complex.