This advice has been issued now, largely because of the restrictions imposed by quarantine and lockdown.
Nonetheless, the NHS says that in summer months, the majority of the population will get enough vitamin D through exposure to sunlight and a healthy, balanced diet.
Between October and early March the health body says we do not make enough vitamin D from sunlight, so you need to get vitamin D from your diet.
Around 20 percent of adults may have low vitamin D status, and there are several main risk factors for vitamin D deficiency.