Canada's active population needs a reliable source of energy to power through demanding days. Vitamin B12 is essential for converting food into fuel, but the form you choose makes all the difference. Dibencozide, or adenosylcobalamin, is the biologically active coenzyme form that your body can put to work immediately—No conversion necessary. That's why Source Naturals developed this quick-dissolving lozenge as part of their Athletic Series, offering a convenient way to support mitochondrial energy production and combat fatigue.

Key Benefits of Vitamin B12

Vitamin B12 contributes to normal energy-yielding metabolism, meaning it helps your body convert food into energy you can use. It also supports the normal function of the nervous system and helps reduce tiredness and fatigue. B12 is necessary for the production of red blood cells, which carry oxygen to your tissues — making it especially relevant for athletes and those with active lifestyles. In addition, B12 plays a role in homocysteine metabolism, supporting cardiovascular health. By ensuring adequate B12 levels, you can maintain mental clarity, stable mood, and overall vitality.

What Makes Dibencozide (Adenosylcobalamin) Different?

Dibencozide is another name for adenosylcobalamin, one of the two biologically active coenzyme forms of vitamin B12. Unlike the more common cyanocobalamin (a synthetic form), adenosylcobalamin is ready for your body to use immediately. It works directly in the mitochondria — the powerhouses of your cells — to help metabolise branched-chain amino acids and produce ATP, the primary energy currency of the body. This makes dibencozide particularly attractive for athletes and anyone seeking to support energy production at the cellular level. By choosing a coenzymated form like adenosylcobalamin, you bypass multiple conversion steps, potentially enhancing bioavailability for those with methylation issues.

Who Should Take a Vitamin B12 Supplement?

Certain groups are at higher risk of B12 deficiency and may benefit from supplementation. Vegans and vegetarians often lack dietary B12 because it is naturally found only in animal products. Older adults frequently experience reduced stomach acid production, which impairs B12 absorption from food. Individuals with gastrointestinal conditions like Crohn’s disease, coeliac disease, or pernicious anemia may also struggle to absorb B12 efficiently. Additionally, people who have undergone weight loss surgery or take medications that reduce stomach acid may need supplementary B12. Athletes and active individuals may seek B12 to support energy production and recovery during prolonged exertion.

How to Choose the Best B12 Supplement

When selecting a vitamin B12 supplement, consider the form, dosage, delivery method, and certifications. Coenzyme forms like methylcobalamin and adenosylcobalamin are often preferred because they are biologically active. Adenosylcobalamin is especially beneficial for mitochondrial energy support. Dosage typically ranges from 500 mcg to 5,000 mcg per serving — higher doses are common for deficiency correction. Lozenges or sublingual tablets can improve absorption by dissolving under the tongue, bypassing the digestive system. Look for products that are non-GMO, gluten-free, and manufactured in cGMP-compliant facilities for quality assurance.

Recommended Dosage and How to Take B12

For general maintenance, many adults take between 500 and 1,000 mcg of B12 daily. For those with deficiencies or higher needs, doses of 5,000 mcg are common. This supplement suggests taking 1 lozenge daily between meals or 30 minutes before workouts. For best results, allow the lozenge to dissolve in your mouth before swallowing. This sublingual method may enhance absorption by allowing the vitamin to be absorbed directly through the oral mucosa. Always consult your healthcare provider before starting any new supplement regimen.

• Quick-dissolving lozenges for easy absorption
• Coenzymated form — adenosylcobalamin (dibencozide)
• Supports energy production during prolonged exertion
• Non-GMO and gluten-free
• Manufactured in the USA under strict cGMPs
• Part of Source Naturals Athletic Series

This product is a natural health product. Always read the label and follow the directions for use. Consult your healthcare practitioner if symptoms persist or worsen, or if you are pregnant or breastfeeding.