How to increase memory?

Hi.. Foods containing B12 vitamins are the best for memory (fish, meat, milk, cheese, yogurt). If you are a vegetarian, take a B12 supplement, and have natural foods containing B6, Folic Acid and Antioxidants. Examples - Carrots, dark leafy vegetables like spinach, cauliflower, peas, lettuce, beans, okra, berries, citrus fruits, green tea, and yes, nuts. Source: http://www.self-improvement-advice.org/vitamins-for-memory.html