When bare skin is exposed to sunlight, it makes Vitamin D, which is needed by our bodies to absorb calcium and ensure strong, healthy bones. With bathing suit skin exposure, it only takes about 10-15 minutes of sun exposure during the summer to generate all the vitamin D your body needs for the day. Exposure to sunlight is diminished during the long winter months. This results in many turning to supplements to get the required vitamin D, according to the University of Calgary.
For normal, healthy adults, Health Canada recommends a total daily intake of 600 international units (IU) up to age 70, and 800 IU after age 70. Other sources, like Osteoporosis Canada, suggest adults at risk of osteoporosis, a condition characterized by bone loss, should take 400 – 2,000 IU of Vitamin D. However, some people may be taking up to 20 times the recommended daily dose to prevent or treat a variety of medical conditions that might be related to having not enough vitamin D. So, what is the correct dose? And, how much is too much? Continue reading