Vitamin B12 Guide

Vitamin B12 is an essential nutrient that supports energy metabolism, red blood cell formation, and normal nervous-system function. Learn how it works and what to consider when choosing a supplement.

✅ Reviewed by Jamieson's Science Team

Quick Answers

What does vitamin B12 do?

Vitamin B12 helps your body use carbohydrates, fats, and proteins and supports red blood cell formation and normal nervous-system function.¹

Does vitamin B12 give you energy?

Vitamin B12 supports the processes your body uses to get energy from food, but it isn’t a stimulant.¹

What is methylcobalamin?

Methylcobalamin is a form of vitamin B12 used in many Jamieson supplements.

How much vitamin B12 do adults need?

Health Canada’s recommended dietary allowance for most adults is 2.4 mcg per day.²

What is vitamin B12?

Vitamin B12 is an essential B vitamin your body needs to make red blood cells and keep the nervous system working normally.¹ 

It also helps your body use carbohydrates, fats, and proteins from food. Vitamin B12 comes in different forms, including methylcobalamin, which is used in many Jamieson B12 supplements. 

How does vitamin B12 support the body?

Vitamin B12 helps your body process nutrients from food as part of normal energy metabolism. It also plays an important role in making red blood cells.¹ 

B12 also helps support normal nervous-system and immune-system function. Jamieson’s current B12 product copy uses these same benefit areas. 

Which health goals can vitamin B12 support?

Energy Support

Vitamin B12 helps your body metabolize carbohydrates, fats, and proteins as part of normal energy production.¹

Everyday Wellness

Vitamin B12 helps form red blood cells and supports normal nervous-system and immune function.¹

Nervous System Support

Vitamin B12 helps maintain the normal function of the nervous system.¹

How can vitamin B1 fit into your routine?

Vitamin B12 needs can vary depending on diet, life stage, and how well your body absorbs it. 

  • Consider your diet: Vitamin B12 is naturally found mainly in animal-derived foods, so people eating little or no animal food may need to pay closer attention to intake. 
  • For everyday energy metabolism: B12 helps your body use the nutrients in food.¹ 
  • As you get older: Absorption can become more important to consider with age. 
  • Choose what fits your day: Tablets, gummies, sprays, strips, and fast-dissolving formats make it easier to build B12 into different routines. 

*It is important to consult your trusted healthcare practitioner before adding any new natural health supplement to your routine. 

What should you look for in a vitamin B12 supplement?

Start with the amount you need, then choose the form and format that fit your routine.

  • Check the strength: Jamieson offers B12 in a wide range of amounts, so compare the mcg per serving. 
  • Check the form: Many Jamieson products use methylcobalamin. 
  • Choose a format: Options include standard and fast-dissolving tablets, timed-release tablets, gummies, sprays, and strips. 
  • Consider convenience: Fast-dissolving formats may be useful if you prefer not to swallow tablets. 
  • Check for combination products: B12 may also appear with iron or in B-complex formulas. 
  • Look for an NPN: Choose a licensed natural health product with an eight-digit NPN. 
  • Look for quality: Jamieson products are backed by the Jamieson 360 Quality Promise. 

For more than 100 years, Jamieson has combined scientific expertise with rigorous quality testing. Every product is backed by the Jamieson 360 Quality Promise. 

*It is important to consult your trusted healthcare practitioner before adding any new natural health supplement to your routine.  

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FAQs
Does vitamin B12 help with energy?

Vitamin B12 helps your body metabolize carbohydrates, fats, and proteins from food as part of normal energy production. It doesn’t work like caffeine or another stimulant.¹

What is methylcobalamin?

Methylcobalamin is a form of vitamin B12. Jamieson uses it in many of its B12 supplements, including its 100 mcg and 1,000 mcg products.

How much vitamin B12 do adults need?

Health Canada’s recommended dietary allowance is 2.4 mcg per day for most adults, increasing to 2.6 mcg during pregnancy and 2.8 mcg during breastfeeding.²

Sources

1. Health Canada. Multi-Vitamin/Mineral Supplements Monograph. Natural and Non-prescription Health Products Directorate.[Text Wrapping Break]https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=multi_vitmin_suppl 

2. Health Canada. Dietary Reference Intakes Tables: Reference Values for Vitamins.[Text Wrapping Break]https://www.canada.ca/en/health-canada/services/food-nutrition/healthy-eating/dietary-reference-intakes/tables/reference-values-vitamins.html