Your baby resembles a tadpole more than a human, but is growing fast. The circulatory system is beginning to form, and the tiny heart will start to beat this week. Your baby is the size of a sesame seed. Read about your pregnancy at 5 weeks.
Stores of B12 can last for up to a year. Foods high in Vitamin B12 include shellfish, liver, fish, crab, fortified soy products (tofu, soymilk), fortified cereals, red meat, low fat dairy, cheese, and eggs.
Or, you can create a diet rich in all the B vitamins by eating a few foods that contain multiple B vitamins. A spinach salad that included hard-boiled eggs and sunflower seeds, for instance, would provide a high amount of every single B vitamin.2. Eat more salmon and trout.These fish are a great low-fat source of protein, and they contain loads of B vitamins. A meal featuring salmon, in particular, provides high levels of 6 of the 8 B vitamins: B2, B3, B5, B6, B7, and B12. Trout has more B1, B2, B5, and B12 than almost any other food.dd more meat to your diet. Lean cuts of beef, pork, and lamb are very good sources of B vitamins. Red meat provides high levels of B2, B3, B5, B6, B7, and B12, while pork is rich in B1, B2, B3, B5, and B6. Chicken and turkey are less potent, but do contain large amounts of B3, B5, and B6.