If you have ever wondered why your energy feels low or your focus dips even when you are trying to eat well, it might be worth looking at your Vitamin B12 intake and where you are getting it from. In this guide, we at Beyond Energised break down natural sources of those vitamins and show you the best food sources of B12 in a simple, practical way.
You will see which foods actually move the needle, how Vitamin B12 for energy and focus works in your body, and how to get Vitamin B12 naturally from everyday meals without needing complicated supplements.
We will walk through each key Vitamin B12 food source, highlight natural foods to add to your weekly shopping, so choosing a natural source and building meals around Vitamin B12-rich foods becomes second nature.
Why Vitamin B12 Matters
Vitamin B12 isn’t just another supplement it’s essential for:
- Energy production
- Brain and nerve function
- Red blood cell formation
- Mood and mental clarity
A deficiency can lead to fatigue, brain fog, mood swings, and even long term nerve damage.
Since your body can’t produce B12 on its own, your diet needs to do the work. Whether you’re plant based, over 50, or just trying to eat smarter this guide is for you.
Who’s Most at Risk of B12 Deficiency?
You may need more B12 if you:
- Follow a vegan or vegetarian diet
- Are over 50 years old (absorption decreases with age)
- Have digestive issues like Crohn’s, celiac, or low stomach acid
- Take meds like metformin or PPIs
If that sounds like you, it’s time to get serious about B12.
Top Natural Sources of Vitamin B12
1. Beef Liver
The #1 food source of B12 a small serving covers several days’ worth.
- B12: 70+ mcg per 100g
- Also rich in: Iron, vitamin A, folate
- Pro tip: Sauté with onions or blend into pâté for easier enjoyment
2. Clams
Tiny but mighty! Clams are packed with B12 and essential minerals.
- B12: 84 mcg per 100g
- Use them in: Seafood chowders, pasta, or grilled
3. Sardines
Sustainable, shelf-stable, and budget-friendly.
- B12: 8.9 mcg per 100g
- Bonus: Loaded with omega-3s, calcium, and protein
- Great for: Topping toast or adding to salads
4. Tuna & Salmon
A delicious way to boost B12, protein, and healthy fats. These are also great ingredients to include in healthy high protein snacks to keep you full and energised throughout the day.
- B12: 4.9 mcg (tuna) / 3.2 mcg (salmon) per 100g
- Best served: Grilled, baked, or in a hearty bowl
5. Eggs
One of the few vegetarian-friendly B12 sources especially the yolks.
- B12: 1.1 mcg per 2 large eggs
- Eat with: Sautéed greens, avocado, or mushrooms
6. Milk & Dairy Products
A daily glass of milk or scoop of yogurt adds steady B12 to your routine.
- B12: ~1 mcg per cup of milk
- Options: Choose organic or fortified when possible
7. Fortified Plant-Based Milks & Cereals
Essential for vegans many almond, soy, or oat milks contain added B12.
- B12: ~2.4 mcg per serving (varies)
- Check labels: Look for cyanocobalamin or methylcobalamin
8. Nutritional Yeast (Fortified)
A vegan favourite with a savoury, cheesy flavour—often B12-fortified. If you’ve never used it, check out how to use nutritional yeast for easy, delicious, and nutritious cooking ideas.
- B12: ~2.4 mcg per tablespoon
- Sprinkle on: Pasta, popcorn, salads, or soups
What About B12 Supplements?
If you’re not getting enough through food — especially if you’re plant-based or have absorption issues — supplements can help.
Best options:
- Sublingual tablets
- Oral sprays
- Monthly injections (for severe deficiencies)
Always consult your healthcare provider to find your ideal dose.
Final Tips: Eat Smart, Stay Energised
Vitamin B12 is small but mighty and you need it daily to support:
- Cognitive health
- Mood regulation
- Physical stamina
- Immune strength
Whether you prefer beef liver or B12-fortified oats, the key is consistency.
Want help optimising your nutrition?
If you’re looking for a professional way to manage your health, our balanced calorie meal plans are a great place to start.
We also offer:
- Personalised nutrition coaching
- Smart supplement strategies
- Long-term energy and wellness support
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