Intervention
’ adverse
DEFICIENCY
The intervention group received 1000 IU of vitamin D and the control group 200 IU of vitamin D daily for 15 weeks. All participants were given 105 doses of vitamin D in white containers identical in terms of organoleptic characteristics to ensure that both participants and researchers were blinded to treatment. The supplementation was provided by the Farma de Colombia laboratory, commercially known as Farma D, whose presentation is in soft gelatin capsules of vitamin D3. To maximise adherence to the intervention, the participants crossed off the daily intake of the supplement on a calendar with the period of the study, which they returned at the end of it. On the other hand, all participants were followed up by phone call at weeks 1, 2, 5, 7, 12 and 14; in these calls, they were inquired about any ‘potential’ adverse effect related to the intervention and adherence to taking vitamin D was evaluated through a self-report instrumentThe cut-off points to establish vitamin D levels were: Deficiency (≤20 ng/ml); Insufficiency (21–29 ng/ml) and Sufficiency (≥30 ng/ml)