Take vitamin D3 supplement pills, available over the counter. Given your low level, take 5000 IU per day for three months and after that take 2000 IU/day.
For good health - Have a diet
rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise
at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol
, weed or street drugs in any form.
Practice safe sex