Bariatric surgery less than 30 ng of vitamin D – 82 pcnt teens, 100 pcnt of black teens – June 2012

Check Vitamin D in Adolescents Before Bariatric Surgery Family Practice News

clips of paper presented by Dr. Marisa Censani at Endocrine Society. ENDO 2012

• Every kilogram increase in BMI correlated with a 0.2-ng decrease in 25OHD levels,
• Roughly 80% of African American deficient , rest had insufficient levels. (100%)
• Hispanics, nearly 60% deficient, close to 25% had insufficient levels (85%)

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See also VitaminDWiki

• Virtually all Bariatric Surgery patients vitamin D deficient – should we routinely supplement – Jan 2011
  96% of French Bariatric patients < 20 nanograms
• Prior to Bariatric Surgery 96 percent were vitamin D deficient – July 2014
• Vitamin D probably important for Bariatric Surgery – April 2018
• Bariatric Surgery is Bad for the Bone (reduce vitamin uptake, etc)– 2016
• Overview Deficiency of vitamin D has a chart - a portion of which shows the problems AFTER the surgery

Overview Gut and vitamin D contains the following summary

• Gut problems result in reduced absorption of Vitamin D, Magnesium, etc.
• Celiac disease has a strong genetic component.
  • Most, but not all, people with celiac disease have a gene variant.
  • An adequate level vitamin D seems to decrease the probability of getting celiac disease.
  • Celiac disease causes poor absorption of nutrients such as vitamin D.
  • Bringing the blood level of vitamin D back to normal in patients with celiac disease decreases symptoms.
  • The prevalence of celiac disease, not just its diagnosis, has increased 4X in the past 30 years, similar to the increase in Vitamin D deficiency.
• Review in Nov 2013 found that Vitamin D helped
  Many intervention clinical trials with vitamin D for Gut problems (101 trials listed as of Sept 2019)
• All items in category gut and vitamin D 209 items

Overview Obesity and Vitamin D contains the following summary

• FACT: People who are obese have less vitamin D in their blood
• FACT: Obese need a higher dose of vitamin D to get to the same level of vit D
• FACT: When obese people lose weight the vitamin D level in their blood increases
• FACT: Adding Calcium, perhaps in the form of fortified milk, often reduces weight
• FACT: 168 trials for vitamin D intervention of obesity as of Dec 2021
• FACT: Less weight gain by senior women with > 30 ng of vitamin D
• FACT: Dieters lost additional 5 lbs if vitamin D supplementation got them above 32 ng - RCT
• FACT: Obese lost 3X more weight by adding $10 of Vitamin D
• FACT: Those with darker skins were more likely to be obese Sept 2014
• OBSERVATION: Low Vitamin D while pregnancy ==> more obese child and adult
• OBSERVATION: Many mammals had evolved to add fat and vitamin D in the autumn
  • and lose both in the Spring - unfortunately humans have forgotten to lose the fat in the Spring
• SPECULATION: Low vitamin D might be one of the causes of obesity – several studies
• SUGGESTION: Probably need more than 4,000 IU to lose weight if very low on vitamin D due to
    risk factors such as overweight, age, dark skin, live far from equator,shut-in, etc.
• Obesity category has 442 items

See also: Weight loss and Vitamin D - many studies   Child Obesity and Vitamin D - many studies   Obesity, Virus, and Vitamin D - many studies
Obese need more Vitamin D

• Normal weight     Obese     (50 ng = 125 nanomole)

Click here for 2014 study