My favorite vitamin D sources from Swanson Health Product's (my home for Cheap Vitamins and Supplements!) are:
Vitamin D-3 2,000 IU - love the small capsules!! (Item #SW1210)
Vitamin D-3 Spray 1,000 IU - I keep the spray bottle at my desk as a reminder. (Item #SWU506)
To help with my energy level & the "happy" day, I also take:
Vitamin B12 (Item #SW031)
Vit B12 Spray (Item #SWU498)
Many of us are low in Vitamin D and could us an extra vitamin D source at least every now and then (especially for seasonal wellness). To figure out how much the average person needs, multiply 35 x your weight. That’s how many units you should take each day. We should all urge our loved ones to get their levels right.