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An easy guide to Vitamin B12

Small but decidedly mighty; little but markedly fierce; vitamin B12 is frequently overlooked yet could just be the simple boost you need to transform your health and energy levels.

Sarah Carolides
What are the benefits of Vitamin B12?

Tiredness, lethargy, apathy - all possible symptoms of a vitamin B12 deficiency. It’s essential for nerve production, artery health and even making new red blood cells. Not to mention that it’s needed by every cell in the body to produce energy and keep us functioning optimally.

But the kicker is that we can’t make it ourselves and we can’t store it very well - so we need a supply of it every single day if we want to stay active and enjoying life.

What does the research say?
B12 is all about feeling good

It’s often the little things that matter - vitamin B12 doesn’t sound very impressive but it packs a mighty punch when it comes to every process in the body that produces energy. It supports our mental health, helps us focus, maintains normal red blood cells, boosts the immune system and happily provides us with the spring in our step and the bounce in our day.

How does Vitamin B12 work?
The Folate Cycle

B12 is a vital part of "the folate cycle", a series of reactions that take place in every cell of the body to provide that cell with energy

Jack of all trades

B12 is converted into other forms that are used to metabolise fats, build proteins or red blood cells and even make DNA. 

What is the best way to take Vitamin B12?

You can obtain Vitamin B12 through consuming animal-based foods such as meat, fish, eggs and dairy products, although this may not provide enough B12 for certain individuals such as vegans, vegetarians or those with absorption issues. If you want to make sure you're getting enough then supplementation is a great way to go. Because it can be an energy booster, we recommend you take vitamin B12 in the morning or early afternoon as it may interfere with your sleep if you take it later in the day. Vitamin B12 Zooki can be taken with or without food.

Unlike most capsules and powders which use a synthetic version of B12 called "cyanocobalamin", Vitamin B12 Zooki contains "methylcobalamin" - the natural form of Vitamin B12 produced using bacterial fermentation

High strength
Contains the natural form of Vitamin B12
Combined with lipids to increase absorption
Ready to drink
Great taste
No mess
How long until I see the effects?

The nice thing about vitamin B12 is that it can get to work as soon as it hits the system. It doesn’t build up in the body as we excrete anything we don’t need, but the minute it provides your cells with the fuel they need to pump out energy, you should start to notice that buzz of feeling just that bit brighter and more energetic. But remember that we don’t store it well so you need to replenish your levels every single day. In cases of a larger deficiency, it may take a few weeks before you notice a difference in extreme tiredness or lack of energy.

Is B12 suitable for everyone?

B12 can benefit everyone, but anyone past the age of 40, anyone following a vegetarian or vegan diet, or anyone with poor digestion can gain even more. Our ability to absorb the B vitamins decreases as we age, mainly because we stop producing the compounds necessary for taking B12 across the gut wall. Certain medications, including the hormonal contraceptive Pill, can reduce the absorption of B12.


The main difference between the bottle and the pump is the serving size. Each 10ml sachet provides 2500mcg of B12, while a 2ml serving (8 pumps) of the bottle provides the same dose.

Additionally, the sachet comes in a strawberry flavour, while the pump comes in a raspberry flavour.

Each 10ml sachet contains 2500 mcg of Vitamin B12 in the form of methylcobalamin. Equally, each 2ml serving (8 pumps) from the bottle is also 2500 mcg.

Vitamin B12, also known as cobalamin, is a vital nutrient that plays a crucial role in keeping our bodies healthy. Think of it as the conductor of an orchestra, coordinating the proper functioning of our cells and DNA. It also helps to produce red blood cells, keeping our blood healthy and oxygenated. Without enough vitamin B12, we can experience fatigue, weakness, and even nerve damage. It's found naturally in animal products like meat, eggs, and dairy, so a supplement is absolutely crucial for those following a plant-based diet.

Regardless of whether you choose a sachet or a pump, B12 Zooki tastes delicious and can be enjoyed neat, or mixed with yoghurts, smoothies and more.

If you've opted for the pump, we recommend you have it straight from the spoon or mix it with yoghurts and smoothies.

If you've opted for the sachet, it tastes delicious cold, straight from the sachet - or you can add it to foods if you wish.

Zooki's unique formula encapsulates B12 with lipids to protect it from the digestive system and enhance absorption. This approach bypasses the need for both the limited intrinsic factor production, and also the receptor production, as the lipid-wrapped b12 is able to pass through the intestinal membrane and enter the bloodstream directly, where B12 can be taken up directly by the cells. This results in improved absorption compared to getting B12 from food or traditional supplements. 

B12 Zooki is most certainly vegan friendly! It's the perfect supplement for any vegan or vegetarian who is struggling to get enough B12.

B12 Zooki is free from gluten, soy, dairy, alcohol and sugar!

Sarah Carolides
Meet the author...

One of the UK’s top functional medicine and nutrition specialists with over 20 years experience, listed by Vanity Fair as one of ‘The A-List people to know in London’




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