Studies show that a B12 deficiency can sometimes result in a loss of appetite. If you take a B12 supplement to treat this deficiency, you may experience an increase in appetite, but that's really a restoration of a normal level. In general, for healthy people, taking B12 neither increases nor decreases appetite.
Vitamin B12 deficiency can indeed lead to weight gain. But the weight gain is not a direct result of the deficiency. Instead, vitamin B12 deficiency causes lethargy or lack of energy, and in turn, inactivity causes weight gain. When you lack the energy to move, you don't burn fat.
B Vitamins
These vitamins are also important in preventing depression. The B vitamins that are most important to appetite control include vitamin B6, vitamin B12, inositol, and folate. They can be taken as individual supplements or, in many cases, taken together in the form of a B complex.
When taken at appropriate doses, vitamin B-12 supplements are generally considered safe. While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine.
Once you begin treating your vitamin B12 deficiency, it can take up to six to 12 months to fully recover. It is also common to not experience any improvement during the first few months of treatment. If you can, it's a good idea to address what's causing the deficiency.
Phentermine and topiramate (Qsymia)
How it works: Curbs your appetite. Qsymia combines phentermine with the seizure/migraine drug topiramate. Topiramate causes weight loss in several ways, including helping you feel full, making foods taste less appealing, and burning more calories.
Different B vitamins keep our digestive systems in good working order. B1 (Thiamine) may help regulate and enhance appetite, while B3 (Niacin) is required for the proper function of fats and sugars in the body.
Vitamin B12 is one of the essential B vitamins that help support a healthy nervous system. B12 works by converting the food we eat into sugar and other types of fuel that keep the body running smoothly. B12 is often associated with weight loss because of its ability to boost metabolism and provide lasting energy.
Vitamin B12 is considered an important brain and nervous system micronutrient and is often used for anxiety. It helps to ensure normal function for your nerves, which can help combat physical symptoms of anxiety.
Vitamin B12 helps increase the body's production of melatonin, making it important for regulating sleep-wake cycles. Higher B12 levels have been associated with a lower risk of depression. That makes sense because disruptions in circadian rhythm can be an underlying—and significant—factor for depression.
Supplements to increase metabolism
B-complex vitamins: These help metabolize carbohydrates, fats, and proteins, activating stored energy instead of letting it turn to fat. Niacin, vitamin B-6, and iron: This impressive trio increases your body's production of the amino acid L-carnitine to help burn fat.
Apple cider vinegar isn't likely to be effective for weight loss. Proponents of apple cider vinegar claim that it has numerous health benefits and that drinking a small amount or taking a supplement before meals helps curb appetite and burn fat. However, there's little scientific support for these claims.
To see how well your tablets are working, your doctor may ask you about symptoms such as tiredness and lack of energy. You may also have regular blood tests to monitor the levels of vitamin B12 in your blood.
Thus if you're otherwise healthy but still continue to feel tired after taking a B-12 supplement, it could be a sign of a mild allergic reaction. If a rash, difficulty breathing or swelling coincides with taking your dose of B-12, get to the doctor right away.