Well you see vitaminB12 is really a water soluble vitamin plus it is used for blood formation and also brain and nerve function too you see every cell in your body needs vitamin B12 and most people who are vegetarians are more likely to be deficient and some symptoms are like impaired brain function and blood disorder,foods to help here are like shellfish clams,and oysters and also organ meat like liver and beef steak and eggs plus whole milk.The next one is Calcium deficiency and this is needed by every cell also mainly for the health of your bones plus excess of calcium is stored in your bones so when your diet lacks calcium it is released from your bones and thats why the most common symptom osteoporosis or just softer bones.foods that can help are like bone fish like sardines or a cup of milk or like kale,spinach,broccoli also.