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X Fact
August 5, 2020
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Are Overweight People More Likely to Have Low Vitamin B12 Levels?

The short answer is yes. In a large survey (NHANES) of the US population of over 9,000 adults, it was found that when divided into four groups (quartiles) based on their vitamin B12 blood levels, the likelihood of being obese was significantly higher in the lower two B12 quartiles than in the highest B12 group. This has been seen in several other studies before, but this information is significant because it is taken from a large sample of subjects in the general population and not restricted to people with diabetes or who are pregnant. There are quite a few theories as to why B12 status is associated with obesity, but those need to be explored further.

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NHANES is a large- scale, ongoing, nationally representative health survey of the non-institutionalized US population. It is conducted by the National Center for Health Statistics (NCHS) of the Centers for Disease Control and Prevention (CDC). NHANES survey data are released every 2 years; each cycle consists of ∼10,000 participants

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Jonathan Bortz MD
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Jonathan’s background as a practicing diabetes specialist for 15 years and 17-year career developing nutritional prescriptive products for the pharmaceutical industry has contributed to his ability to understand nutrients, how they work and why they are important.

Over the years he has acquired broad and in-depth knowledge in minerals, essential fatty acids and other nutrients, but has special expertise in Vitamin B12 and choline metabolism. He is often asked to speak at national and international venues to articulate why B12, folate and choline are so important to gene function, brain development, liver and cardiovascular health. He applies pharmaceutical standards to nutrient science and has developed a unique ability to translate complicated concepts into simple promotional messages that resonate with practitioners and consumers. He has developed dozens of innovative nutritional products, of which many are category leaders in the US. Jonathan obtained his medical degree from the University of the Witwatersrand Medical School in South Africa and did his fellowship in Endocrinology at Washington University in St. Louis, MO.

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