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.
Vitamin B complex can be found in many food groups which include green and leafy vegetables, dairy products, fresh fruits, and certain meats.Therefore, foods containing Vitamin B complex are brewerâs yeast, milk, whole grain cereals, liver, eggs, nuts, poultry, fish and yogurt, to name a few.Given below is a list of the different foods containing Vitamin B complex: 1  B 1 (Thiamin): Beans, liver, wheat germ, fish, peanuts and oranges.2  B 2 (Riboflavin): Green and leafy veggies, dairy products, nuts, beans and meat. 3  B 3 (Niacin): Nuts, meat, dairy products, beans and peanuts.itamin B complex can be found in many food groups which include green and leafy vegetables, dairy products, fresh fruits, and certain meats.