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.r, 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.