Vitamin D-3 15 µg/600 IUSolgar Vitamins

The choice is whether you want to be at the lower or upper limit. 120 is the upper limit and that is fine. Vitamin D has a half-life of a month. A good maintenance dose is 75 mcg in the winter and 25 mcg in the months when there is a bit more sun. In the Netherlands, you can acquire vitamin D from the sun for three months a year.

If you have a deficiency and during the winter months, we recommend at least 25 mcg (µg) of vitamin D3.

The terms "D3 15 µg" and "D3 25 µg" refer to the amount of vitamin D3 in a product. Vitamin D3 is the form of vitamin D that our body naturally produces when our skin is exposed to sunlight. The number next to "µg" (microgram) indicates the amount of vitamin D3 in the product. So, D3 15 µg means there are 15 micrograms of vitamin D3 in the product, and D3 25 µg means there are 25 micrograms. As for which dosage is better, it depends on your personal needs. Some people might require a higher dosage, for instance, if they spend little time outdoors or have darker skin. Others might find a lower dosage sufficient. If you would like further advice, I recommend contacting us via email.

Indeed, the need for vitamin D increases with a darker skin tone.

A good guideline for children aged 10 and above is 25 mcg (1000 IU) of vitamin D per day. For example, Solgar offers the Vitamin D-3 1000 IU.

Vitamin D is also available in liquid form. This is somewhat easier for children to take than a capsule. Solgar's Liquid Vitamin D-3 provides 4 micrograms of vitamin D per drop. You can give them both 6 drops per day, totalling about 24 mcg of vitamin D.

You can also comfortably take a slightly higher dose than 15 mcg. Approximately 25 mcg per day is also a good guideline for adults (with or without a tan).