Tropical Weight Loss
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Vitamin B12 shots and supplements are popular among those looking for a quick fix for weight loss. In fact, some even claim that increasing your intake of vitamin B12 can help fight fatigue, boost energy levels, and speed up your metabolism.
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Read More »Vitamin B12 shots and supplements are popular among those looking for a quick fix for weight loss. In fact, some even claim that increasing your intake of vitamin B12 can help fight fatigue, boost energy levels, and speed up your metabolism. However, research on the potential effects of vitamin B12 on weight loss has turned up mixed results. This article takes an in-depth look at the evidence to determine whether vitamin B12 can help promote weight loss. Share on Pinterest Cavan Images/Offset Images What is vitamin B12? Also sometimes referred to as cobalamin, vitamin B12 is a water-soluble vitamin that’s essential for several aspects of health. This vitamin is involved in forming DNA and red blood cells, as well as necessary for brain function, heart health, energy production, and more ( 1 ). It’s found naturally in many animal products and sometimes added to fortified foods ( 1 ). Vegans, vegetarians, older adults, and people with digestive issues that can interfere with nutrient absorption may be at a higher risk of vitamin B12 deficiency and need to supplement ( 2 ). Supplements 101: Vitamin B12 summary Vitamin B12 is a water-soluble vitamin involved in several aspects of health, including DNA synthesis, red blood cell formation, and brain function. Effects on body fat and metabolism Although research in humans is still very limited, some studies suggest that vitamin B12 could affect body fat and metabolism. One review concluded that vitamin B12 plays a key role in fat metabolism, noting that a deficiency could be linked to increased fat accumulation and obesity ( 3 ). Another animal study found that severe vitamin B12 deficiency led to a significant increase in body fat percentage and cholesterol levels in pregnant mice ( 4 ). What’s more, one animal study showed that administering B vitamins to rats fed a high fat diet reduced weight gain and increased levels of several enzymes that influence metabolism, compared with a control group ( 5 ). However, current evidence is lacking, and additional high quality studies are needed to determine how vitamin B12 may affect metabolism and body fat in humans. summary Some animal studies suggest that a deficiency in vitamin B12 may increase body fat percentage and alter metabolism. More research in humans is needed. Low levels may be linked to obesity Interestingly, several studies have found that having adequate vitamin B12 levels may be associated with a lower risk of weight gain and obesity. According to one large study in 9,075 people, having higher blood levels of vitamin B12 was associated with a lower risk of obesity ( 6 ). Similarly, another study in 976 people showed that having low levels of vitamin B12 was linked to a higher risk of overweight or obesity ( 7 ). What’s more, a study in 256 children showed that children with lower levels of vitamin B12 tended to have a higher body mass index (BMI), which is a measure of body size determined by height and weight ( 8 ). However, keep in mind that while these studies show an association between vitamin B12 status and body weight, they don’t take other potentially contributing factors into account. Therefore, it can’t be concluded that vitamin B12 causes weight loss. More research is needed to determine whether vitamin B12 directly affects body weight or BMI. summary Some studies show that lower levels of vitamin B12 may be associated with a higher risk of overweight or obesity. Further studies are needed to determine whether other factors may also be involved.
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Read More »Signs of vitamin B12 deficiency A vitamin B12 deficiency can lead to megaloblastic anemia, a condition characterized by a low number of red blood cells that are larger than normal ( 9 ). Megaloblastic anemia can cause a variety of symptoms and side effects, including ( 10 ): shortness of breath
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