





Are vitamin B12 sprays more effective than regular B12 tablets or B12 in food?
Yes — sublingual B12 sprays can be significantly more effective!
If the daily recommended intake of B12 is only 2.4 mcg, why does VIIT sublingual spray contain 50 mcg?
While the recommended daily intake of vitamin B12 is just 2.4 mcg, your body’s ability to absorb B12 from food or tablets is limited — especially if you have low stomach acid or absorption issues.
Our sublingual spray is designed to bypass the digestive system entirely, allowing B12 to be absorbed directly into the bloodstream via the mucous membranes under the tongue. This delivery method can absorb more than 90% of the B12 dose, so from 50 mcg, you might absorb around 45 mcg — far more than a standard pill.
Since B12 is water-soluble, your body uses what it needs and safely excretes the rest. Higher doses help ensure you consistently meet your needs and can be especially beneficial for people who are vegan, older, or low in B12.
How does vitamin B12 help with energy, and what are some of the other benefits?
Vitamin B12 plays a crucial role in energy production at the cellular level. It helps convert the food you eat — especially carbohydrates — into glucose, which your body uses for fuel. Without enough B12, your body can’t efficiently produce energy, leading to feelings of fatigue, brain fog, and weakness.
But B12 does more than just boost energy. It also helps:
• Support red blood cell formation, which carries oxygen throughout your body
• Helps maintain a healthy nervous system and brain function
• Plays a role in DNA synthesis and repair
• Supports mood balance and may reduce symptoms of anxiety or low mood
What are some of the symptoms of low B12 levels?
Low B12 levels can show up in both subtle and serious ways — and because symptoms often build gradually, they can be easy to miss or mistake for something else.
Common signs of B12 deficiency include:
• Fatigue or low energy, even after a good night’s sleep
• Brain fog, poor memory, or difficulty concentrating
• Mood changes, including low mood, anxiety, or irritability
• Tingling or numbness in the hands, legs, or feet
• Pale skin or shortness of breath
• Dizziness or feeling off balance
• Sore, swollen, or smooth tongue
If you’re feeling constantly tired, low in focus, or just not quite yourself, a daily B12 spray can be a simple, effective way to get back on track.
