In the case where morning sickness is thought to be down to a deficiency of vitamins and minerals, vomiting will further deplete your system and create a vicious cycle.
A lack of vitamin B6 will cause anxiety, a feeling of discomfort and depression. It is always best to take B vitamins as part of a complex as in isolation it can cause an imbalance of the other B vitamins.
If magnesium levels are reduced by vomiting, this will exacerbate nausea and can be replenished by eating, nuts, brocolli, pumpkin seeds, avocado, wheatgerm, cucumber, leeks, sweet potato, tomato, barley, mushrooms, honey, bananas, kiwi, oranges, peaches, pears, watermelon etc
Potassium levels may be maintained by eating bananas, cantaloupe, oranges, strawberries, kiwi, avocados, apricots, greens, mushrooms, peas, beetroot, tomatoes, beef, fish, turkey, or by drinking the juice of oranges, prunes, apricots, grapefruits etc
Low levels of zinc are associated with nausea and the need for zinc rises in pregnancy for the growth of the tissues of the mother and the baby. Good sources of zinc in the diet are: cabbage, peanuts, tomato, barley, oats, rye, spelt, mushrooms, peach, pineapple, watermelon etc