Какой из вариантов перевода на английский язык наиболее корректный?

Подскажите, какой из вариантов перевода наиболее корректный?

Витамины группы В. В эту группу входят более 10 одноименных витаминов с разными индексами и влиянием на определенные системы в организме. Но, в целом, витамины этой группы участвуют в работе мозга и нервной системы, улучшают память и концентрацию внимания. Их нехватка не лучшим образом сказывается на психическом здоровье человека, что приводит к нервным срывам и депрессии. Для полноценного развития мозга младенца, беременным женщинам прописывают витамин В9 (фолиевая кислота) и продукты его содержащие. Этот витамин часто называют «витамином гениальности». Он содержится в большом количестве в мясе, домашней птице, печени, рыбе, яйцах, зеленых овощах, ростках пшеницы, апельсинах. Также витамины группы В есть в составе препаратов. Эти препараты не только улучшает мозговую деятельность, повышая внимание и умственную работоспособность, но и благотворно влияет на работу нервной системы.

Перевод №1. Vitamins of group B. This group includes more than 10 eponymous vitamins with different indices and the effect on certain systems in the body. But, in general, vitamins of this group participate in the work of the brain and nervous system, improve memory and concentration. Their lack is not the best way affects the mental health of a person, which leads to nervous breakdowns and depression. For the full development of the baby’s brain, pregnant women are prescribed vitamin B9 (folic acid) and its products. This vitamin is often called the "genius vitamin." It is found in large quantities in meat, poultry, liver, fish, eggs, green vegetables, wheat germ, oranges. Also, B vitamins are part of the preparations. These drugs not only improve brain activity, increasing attention and mental performance, but also have a beneficial effect on the functioning of the nervous system.

Перевод №2. Vitamins of group B. this group includes more than 10 vitamins of the same name with different indices and effects on certain systems in the body. But, in General, vitamins of this group are involved in the work of the brain and nervous system, improve memory and concentration. Their lack is not the best way to affect the mental health of a person, which leads to nervous breakdowns and depression. For the full development of the baby's brain, pregnant women are prescribed vitamin B9 (folic acid) and products containing it. This vitamin is often called the "genius vitamin". It is found in large quantities in meat, poultry, liver, fish, eggs, green vegetables, wheat germ, oranges. Also, В vitamins are in the composition of drugs. These drugs not only improve brain activity, increasing attention and mental performance, but also have a beneficial effect on the nervous system.

Перевод №3. Group B vitamins. This group includes more than 10 vitamins of the same name with different indexes and effects on certain systems in the body. But, in general, vitamins from this group participate in the brain and nervous system, improve memory and concentration. Their deficiency is not the best effect on mental health, which leads to nervous breakdown and depression. For the full development of the infant brain, pregnant women are prescribed vitamin B9 (folic acid) and products containing it. This vitamin is often called "vitamin of genius". It is found in large quantities in meat, poultry, liver, fish, eggs, green vegetables, wheat sprouts, oranges. There are also B vitamins in the preparations. These drugs not only improve brain function, increasing attention and mental performance, but also have a beneficial effect on the nervous system.