Pottie said vitamin D deficiency has also been linked to other mental illnesses such as depression, as well as breast cancer, colon cancer and heart disease.
Nevertheless, he does recommend that his darker-skinned patients take a vitamin D supplement.
Karod acknowledged that immigrant communities such as his need to make people aware of the benefits of taking supplements to boost their vitamin D levels, especially before pregnancy.
"It is taboo in the Somali community that your child has … depression," he said.
More than 100 youth are being mentored in those sports this winter.