After a gastric bypass, vitamin and mineral deficiencies are fairly common. That’s because with a gastric bypass, part of the small intestine is bypass. Most of your vitamins and minerals are absorbed through your small intestine, and when the small intestine in shortened, fewer vitamins and minerals get absorbed. This can lead to nutritional deficiencies.
Vitamin D is a fairly common vitamin to become deficient in after a gastric bypass. People who have had a gastric bypass are advised to take multivitamins, and these will of course contain some vitamin D, but it might not be enough. People should also take calcium supplements after a gastric bypass, and many calcium supplements contain vitamin D because it helps with the absorption of calcium. This still might not be enough, however. It will be very difficult, if not impossible, to get enough vitamin D just from food and sunlight alone after a gastric bypass. There are other vitamins and minerals you won’t be able to get enough of from food alone, so taking your vitamins religiously will be very important.
You should have regular blood tests done after a gastric bypass to monitor you for nutritional deficiencies. Blood tests are usually done at three months after surgery, at six months after surgery, and at one year after surgery. After that, blood tests are usually done once or twice a year. Talk to your doctor about how often you should be having blood tests and what tests you should have. One of the tests should be a test to measure your vitamin D. You might want to have blood tests done before you even have your surgery, as well, to see if you have any vitamin or mineral deficiencies to begin with. If so, you can take supplements to correct the problem before you have your surgery.
If your blood tests show that your vitamin D is low, you’ll need to take a supplement. There are two kind of vitamin D, D2 and D3. Vitamin D2 is not very well absorbed. D3 is the kind you need. Vitamin D2 is available by prescription, and your doctor may offer to write you a prescription if your blood tests show you vitamin D is low. Remember, though, that vitamin D2 is not well absorbed. Tell you doc thanks but no thanks for the prescription and buy some D3 over the counter instead.
Vitamin D3 is available in several different strengths. You can buy it in 1000 IU’s, but this is a very small amount and will probably not help you if your level is low. You can buy it in 5000 IU’s and take it once a day, which will probably help. Or, you can buy it in 50,000 IU’s and take it once a week. Talk to your doctor about how much vitamin D you should take to get your level up.Medscape Today. http://www.medscape.com/viewarticle/531684_4. Gastric Bypass andVitamin D Metabolism: Discussion.