Multiple disorders and diseases are now associated with vitamin-D deficiency, including metabolic disorders, psychiatric and cardiovascular disorders, type 2 diabetes, hypertension, and osteoporosis leading to bone fractures. Left unchecked, it can make you prone to autoimmune diseases like multiple sclerosis, Crohn’s disease, rheumatoid arthritis, metabolic syndrome, prostate cancer, colorectal cancer, schizophrenia, asthma, gum diseases, insulin resistance and heart disease.

The best way to top up your vitamin D levels is through supplementation, but consult with your doctor first. You can choose from capsules, a spray or tonic applied to your tongue, with studies finding neither one better than the other. As for how much to take, the general consensus is 3,000 units, with the minimum for adults being 2,000 units a day.

Vitamin D supplements are proven to deliver the same benefits as sun exposure, so you don’t need to risk other ailments to top up a deficiency – protecting skin with SPF every day is still essential.

Speaking of protecting your skin, here’s How To Look Less Tired – In Three Easy Steps. Even if you look like you’ve been dragged through a hedge backwards, run over by a train and been trampled by a herd of elephants.