1: "Introduction: Iron and Vitamin B12 are essential for energy production."

2: "1. Lean red meat: A great source of both iron and Vitamin B12."

3: "2. Spinach: Packed with iron and easy to add to any meal."

4: "3. Eggs: Rich in Vitamin B12 and versatile for any meal."

5: "4. Fortified cereals: Great source of iron and Vitamin B12."

6: "5. Shellfish: Excellent source of both iron and Vitamin B12."

7: "6. Tofu: Plant-based option for iron and Vitamin B12."

8: "7. Lentils: Iron-rich plant-based option for energy."

9: "Conclusion: Incorporate these foods for a natural energy boost."