Liquid vitamin B12 supplements, everything you should know before taking them

Everything you should know before taking liquid vitamin B12 starting from the dosage and contraindications

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Everything you should know before taking liquid vitamin B12 starting from the dosage and contraindications

Our body needs the Vitamin B12 to maintain metabolism, produce DNA and red blood cells and keep the nervous system healthy. Fortunately, this soluble vitamin can be easily supplemented through food.

However, according to one study some groups of people may require more than they get from food, such as:

  • elderly
  • pregnant or breastfeeding women
  • those who follow a vegan or vegetarian diet
  • who has digestive problems
  • who takes certain drugs

Obviously, in case of deficiency it is necessary to take supplements and a good alternative are liquid ones. Let's find out the benefits and any side effects.


Types of vitamin B12

La Vitamin B12 Occurring in nature, it is found mainly in cereals, such as breakfast cereals and nutritional yeast, but also in fortified foods.

On the contrary, the liquid vitamin B12 supplements they are synthetically produced in the laboratory using microbes and other chemical processes. They are made by combining the element cobalt with other compounds, such as cyanide and methane derivatives. Another name for vitamin B12 is cobalamin, and synthetic B12 supplements usually contain cobalamin.

The most common types of vitamin B12 supplements I'm:

  • cyanocobalamin
  • methylcobalamin
  • hydroxycobalamin
  • adenosylcobalamin

Of these, the cyanocobalamin it can be considered the most synthetic, since it has a different chemical composition than the naturally occurring vitamin B12. The other three are chemically identical to B12 found in foods. However, when used in supplements, they are made in a laboratory rather than isolated from natural sources.

Vitamin B12 Deficiency Symptoms

The body requires vitamin B12 for important functions, such as metabolism, blood cell production, and brain health. A deficiency can cause a range of mild to severe side effects.

Le deficiencies of vitamin B12 can cause:

  • discoloration of the skin
  • irregular heartbeat
  • abnormal gait or gait movements
  • glossitis, swelling of the tongue
  • numbness in the hands and feet
  • acute psychosis
  • symptoms similar to dementia
  • irritability
  • infertility

In many cases, it can take years for these types of symptoms to appear.

Uses and benefits of liquid B12 supplements

In severe cases of malabsorption or in people with risk factors for deficiency, a liquid supplement it could help prevent symptoms, and it may even have some health benefits. Below are all the benefits and uses of liquid supplements.

They treat anemia

Vitamin B12 is critical for the production of red blood cells, and when the body is unable to produce them, a condition called anemia.

Vitamin B12 deficiency anemia makes you feel weak and fatigued, and in severe cases it can even damage the heart and nervous system. Oral B12 supplements are an effective way to normalize B12 and blood levels prevent deficiency anemia.

They could increase energy levels in the event of a deficiency

Vitamin B12 is commonly known to improve energy levels. Indeed, this micronutrient helps the body to metabolize food and transform it into energy; so, if you are deficient in B12, taking a supplement could help you feel more energetic. However, if you are already getting enough vitamin from your diet, it is unlikely that you will notice changes in your energy levels from taking a supplement.

They could prevent birth defects

B12 deficiency can be particularly dangerous for pregnant or breastfeeding women. A deficiency during these stages can cause cognitive and developmental delays, neural tube defects and low rates of weight gain in children, also known as stunting. THE researchers they are still exploring how best to use oral supplements to prevent these effects, and it appears that maintaining adequate blood levels through supplementation improves birth outcomes.


La liquid vitamin B12 is available in stores and online; typically these supplements come in a small bottle that includes a dropper syringe for administration.

For the dosage It is best to consult your doctor first, as nutritional needs vary from person to person and liquid supplements may interact with others drugsIt's worth noting that these often contain other ingredients as well, such as fruit and vegetable extracts, glycerin, sweeteners, and more.

The amount of vitamin B12 included in a supplement varies by brand, but there are no official dosage recommendations which vary by gender and age group:

  • Men 14-18: 2,4 mcg
  • Men 19+: 2,4 mcg
  • Women 14–18: 2,4 mcg
  • Women 19+: 2,4 mcg
  • During pregnancy: 2,4 mcg
  • During lactation: 2,8 mcg

Potential Side Effects

Liquid vitamin B12 supplements are considered safe for most people, as the water-soluble vitamins, like vitamin B12, are regulated by the kidneys, consequently any excess will be excreted in the urine. This makes it side effects are unlikely to occur from taking an overdose. However, there have been rare reports of people experiencing severe allergic reactions.

These cases were due to allergies to cobalt molecules or other ingredients in supplements, such as benzyl alcohol. An allergic reaction could cause it symptoms, as:

  • rashes
  • redness
  • swelling
  • anaphylaxis

Additionally, although low levels of vitamin B12 can have harmful effects on infants, it appears that high levels of the vitamin can too. One study found that elevated blood levels of B12 in mothers increase the risk of autism in their babies.

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