drink a glass of milk per day
And go for a walk. The sun doesn’t kill.
A glass of milk probably won’t help you much. Some low fat milk will have little to no Vitamin D.
Milk is fortified - by law - so you’ll probably get 100 IU but it’s not a great source of Vitamin D.
Eat some portabella mushrooms and take a walk in the sun in your speedo.
As long as it's from organic, preferably from grass fed (in sunshine) cows.
AND WHOLE!
Not GMO's, "anti-bioticed," "mastitis pussed", thin 'low-fat' pseudo milk.
On the farm - and until the low fat craze, (ie;, for thousands of years, we drank WHOLE milk.
The milk pails came up from the barn and were poured into milk separator...AFTER the household milk was saved out.
The separator 'separated' the cream out. That was stored in the cellar-way for a week for Friday's butter churning. The watery 'skim' milk left over was put in the swill bucket with table scraps for the pigs.
Get your VIt D the same way the cows get it - from the sun.