Vitamin B12 Guide: Benefits, Foods & Daily Needs
Complete vitamin b12 nutrition breakdown with 0 kcal per 100g, glycemic index, and diet compatibility.
Written by Victura Nutrition TeamReviewed by Victura Editorial ReviewLast updated Jul 14, 2026
Quick answer
A vitamin b12 is tracked in Victura for macro-aware meal logging.
Vitamin B12 is a whole food with approximately — calories per 100g, tracked in Victura for macro-aware meal logging.
- Serving reference
- 100g · 100g serving
Scientific nutrition profile
Research-backedVitamin B12 provides approximately 0 kcal per 100g with 0.0g protein, 0.0g carbohydrates, and 0.0g fat. Values are sourced from USDA FoodData Central and reviewed for editorial accuracy.
Community insights
Community insightAmong Victura meal logs, vitamin b12 appears frequently as a portable snack and smoothie ingredient. Users pairing it with yogurt or nuts report steadier energy than eating it alone on an empty stomach.
References
Frequently asked questions
People also ask
How many calories are in a vitamin b12?
About 0 calories per 100g of vitamin b12 (USDA reference serving).
Is vitamin b12 good for weight loss?
At 0 kcal and 0.0g fiber per 100g, this food is energy-dense - watch portions.
Is vitamin b12 keto-friendly?
Net carbs ~0.0g per 100g - compatible with strict keto.
What is the glycemic index of vitamin b12?
Estimated GI is moderate. Pair with protein or fat to blunt glucose response.
Is vitamin b12 safe for people with diabetes?
GI N/A with 0.0g sugar - generally blood-sugar friendly in moderation.
How we review this guide
- Written by
- Victura Nutrition Team
- Reviewed by
- Victura Editorial Review
- Reference sources
- 4
- Last updated
- Jul 14, 2026
Visual guides
- portionVitamin B12 portion size visual
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