However, certain vitamins, such as folic acid and B12, are important for a healthy nervous system, so people with MS should have a good intake of these in their diet. Vitamins are easily destroyed by cooking and storage, so fresh fruit and vegetables should be eaten as soon as possible and not overcooked. To get enough of these vitamins, eat at least five portions of fruit and vegetables daily. People who are concerned about their intake of vitamins and minerals should talk to a doctor or ask to be referred to a dietitian. So far, no controlled studies have been carried out, so there is no conclusive scientific evidence of any being beneficial.
Some diets can be very restrictive and expensive.
They may be bad for health if followed without supervision by a doctor or dietitian. Any individuals with MS who are pregnant, or who are planning to be, should get advice from a health professional. A dietary supplement of folic acid, for instance, is known to be beneficial. For further information on research into nutrition and current evidence for dietary factors in MS please go to the section on Research . When taking vitamins or supplements of any kind, do not exceed the recommended dose - there can be risks in taking large amounts.