Vitamin B12 Nutrition Facts: Calories, Macros & Health Benefits
Summary: 100g of vitamin b12 contains 0 calories, 0g protein, 0g carbs, and 0g fat. Vitamin B12 is a good source of essential vitamins and minerals.
Nutrition Facts — per 100g
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 0 kcal | 0% |
| Protein | 0.00g | 0% |
| Carbohydrates | 0.00g | 0% |
| Total Fat | 0.00g | 0% |
Is Vitamin B12 Good for You?
Yes, Vitamin B12 is essential for human health. It plays a critical role in red blood cell formation, neurological function, and DNA synthesis. This nutrient supports energy metabolism and helps maintain healthy nerve tissue, making adequate intake important for overall wellness and disease prevention.
Key Health Benefits of Vitamin B12
Supports Energy Production: Vitamin B12 is essential for converting food into usable energy by helping your body metabolize carbohydrates, fats, and proteins efficiently. Without adequate B12, you may experience fatigue and low energy levels throughout the day.
Promotes Brain Health and Cognitive Function: It is crucial for maintaining myelin, the protective coating around nerve fibers, which supports memory, concentration, and mental clarity. Deficiency in this nutrient has been linked to cognitive decline and difficulty concentrating.
Aids Red Blood Cell Formation: Vitamin B12 works with folate to produce healthy red blood cells and prevent megaloblastic anemia, a condition characterized by abnormally large, immature red blood cells. Proper B12 levels ensure oxygen is efficiently transported throughout your body.
Strengthens the Nervous System: It is vital for nerve function and helps prevent neurological complications like peripheral neuropathy, numbness, and tingling sensations. Regular B12 intake protects against long-term nerve damage.
Supports Heart Health: Vitamin B12 helps regulate homocysteine levels, an amino acid linked to cardiovascular disease when elevated. Maintaining adequate B12 contributes to better heart health and reduced stroke risk.
How Does Vitamin B12 Compare?
Vitamin B12 stands out among B vitamins for its unique role in neurological health and its almost exclusive presence in animal-based foods. Unlike many other B vitamins found abundantly in plant sources, it is primarily available naturally in meat, fish, dairy, and eggs, making supplementation or fortified foods particularly important for vegetarians and vegans.
Frequently Asked Questions
How many calories is in vitamin b12?
Vitamin B12 itself is a micronutrient that contains virtually no calories—it’s measured in micrograms (mcg), not as a calorie-containing macronutrient. Foods that contain Vitamin B12, such as beef, salmon, or eggs, do contain calories from their protein, fat, and other components, but the B12 itself contributes negligibly to overall calorie intake.
Is vitamin b12 good for weight loss?
While Vitamin B12 is not a weight loss supplement, it is essential for proper metabolism and energy production during a weight loss journey. Some people with B12 deficiency experience sluggish metabolism and fatigue, so adequate B12 intake supports optimal metabolic function, though supplementation won’t directly cause weight loss without diet and exercise changes.
Does vitamin b12 help with energy and fatigue?
Yes, Vitamin B12 is vital for converting nutrients into energy your body can use, and deficiency commonly causes persistent fatigue and weakness. If you’re experiencing unexplained tiredness, checking your B12 levels is worthwhile, as supplementation can dramatically improve energy in deficient individuals.
Can vegans and vegetarians get enough vitamin b12?
Plant-based foods naturally contain very little Vitamin B12, making it challenging for vegans and vegetarians to meet daily requirements through diet alone. It is highly recommended that plant-based eaters use fortified foods (like plant milks or nutritional yeast) or B12 supplements to prevent deficiency.
How long does vitamin b12 last in your body?
Your body stores Vitamin B12 primarily in the liver, which can maintain adequate reserves for 3-5 years if intake stops completely. It is water-soluble and not stored as efficiently as fat-soluble vitamins, so consistent dietary intake or supplementation is important for maintaining healthy levels.
How to Track Vitamin B12 Nutrition with Gram
The Gram app makes monitoring your Vitamin B12 intake effortless by logging foods and instantly displaying their complete nutrient breakdown. Simply scan foods with our AI food scanner or search your favorite B12-rich sources like salmon, eggs, or fortified cereals to see exactly how much of this vital nutrient you’re consuming daily and whether you’re meeting your targets.
Frequently Asked Questions
How many calories is in vitamin b12?
Vitamin B12 itself is a micronutrient that contains virtually no calories—it's measured in micrograms (mcg), not as a calorie-containing macronutrient. Foods that contain Vitamin B12, such as beef, salmon, or eggs, do contain calories from their protein, fat, and other components, but the B12 itself contributes negligibly to overall calorie intake.
Is vitamin b12 good for weight loss?
While Vitamin B12 is not a weight loss supplement, it is essential for proper metabolism and energy production during a weight loss journey. Some people with B12 deficiency experience sluggish metabolism and fatigue, so adequate B12 intake supports optimal metabolic function, though supplementation won't directly cause weight loss without diet and exercise changes.
Does vitamin b12 help with energy and fatigue?
Yes, Vitamin B12 is vital for converting nutrients into energy your body can use, and deficiency commonly causes persistent fatigue and weakness. If you're experiencing unexplained tiredness, checking your B12 levels is worthwhile, as supplementation can dramatically improve energy in deficient individuals.
Can vegans and vegetarians get enough vitamin b12?
Plant-based foods naturally contain very little Vitamin B12, making it challenging for vegans and vegetarians to meet daily requirements through diet alone. It is highly recommended that plant-based eaters use fortified foods (like plant milks or nutritional yeast) or B12 supplements to prevent deficiency.
How long does vitamin b12 last in your body?
Your body stores Vitamin B12 primarily in the liver, which can maintain adequate reserves for 3-5 years if intake stops completely. It is water-soluble and not stored as efficiently as fat-soluble vitamins, so consistent dietary intake or supplementation is important for maintaining healthy levels.
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Nutrition data sourced from USDA FoodData Central. Track vitamin b12 and thousands of other foods with the Gram app.