A new study suggests overweight individuals might not reap the health benefits from taking Vitamin D supplements.

Researchers found a 30% to 40% reduction in cancer, cancer deaths and autoimmune diseases among people with a lower body mass index (BMI) who took vitamin D supplements, but only a small benefit among those with higher BMIs.

“Patients with obesity, despite taking the same amount of supplement, had a lower response,” said lead researcher Deirdre Tobias, an assistant professor in the department of nutrition at the Harvard School of Public Health, in Boston. [source]

Read more about the study and its findings here.