Unfortunately, there is no firm evidence for any specific supplements or vitamins as being helpful for people with ME/CFS currently. However, Vitamin D is a notable consideration, since some people with ME/CFS may be at greater risk of vitamin D deficiency, especially if they seldom have access to natural sunlight. The National Institute for Health and Care Excellence (NICE) recommends the following reference intakes for vitamin D:

• 10 micrograms of vitamin D per day, throughout the year, for everyone in the general population aged 4 years and older

• 10 micrograms of vitamin D per day for pregnant and lactating women and population groups at increased risk of vitamin D deficiency.

The ME Association have suggested that for those whose diet is restricted, it may be worth considering taking a good quality multivitamin tablet every day.