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Absorption of most vitamins is not seriously affected after proximal GBP, although vitamin B 12 may not be well-absorbed in some persons: sublingual preparations of B 12 provide adequate absorption. Some studies suggest that GBP patients who took probiotics after surgery can absorb and retain higher amounts of B 12 than patients who did not ...
Bypass of the terminal ileum, which is the specific site of vitamin B 12 absorption, leads to Vitamin B 12 deficiency with a specific peripheral neuropathy. Vitamin A deficiency can induce night blindness. Calcium oxalate renal stones occur commonly following JIB, along with increased colonic absorption of oxalate. The colonic absorption of ...
Various methods of gastric bypass or gastric restriction surgery are used to treat morbid obesity. Roux-en-Y gastric bypass surgery (RYGB) but not sleeve gastric bypass surgery or gastric banding, increases the risk of vitamin B 12 deficiency and requires preventive post-operative treatment with either injected or high-dose oral supplementation.
Low serum levels of Vitamin B12, Vitamin A, Vitamin D, Vitamin E, and Vitamin K are common nutritional deficiencies after the surgery. 1000 mg of Vitamin B12 is recommended monthly, and supplements of vitamins and minerals are also recommended for the first half to full year after the surgery until the rapid weight loss period has passed.
Cyanocobalamin injections are often prescribed to gastric bypass patients who have had part of their small intestine bypassed, making it difficult for B 12 to be acquired via food or vitamins. Cyanocobalamin is also used to perform the Schilling test to check ability to absorb vitamin B 12. [16]
According to a 2009 research into calcium absorption after gastric bypass surgery, [5] calcium citrate may have improved bioavailability over calcium carbonate in Roux-en-Y gastric bypass patients who are taking calcium citrate as a dietary supplement after surgery. This is mainly due to the changes related to where calcium absorption occurs in ...
[3] [6] Bariatric surgery, such as gastric bypass surgery, is often used for weight control of the morbidly obese. The disruption of the intestines and stomach from the surgery can cause absorption difficulties not only as regards copper but also for iron and vitamin B12 and many other nutrients. [3]
Copper deficiency can manifest in parallel with vitamin B12 and other nutritional deficiencies. [9] The most common cause of copper deficiency is a remote gastrointestinal surgery, such as gastric bypass surgery, due to malabsorption of copper, or zinc toxicity. Fluorine deficiency: Increased dental caries and possibly osteoporosis
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