This clinical trial focuses on treating a condition known as vitamin D deficiency in obese children and adolescents. The study will use two forms of a medication called colecalciferol, which is also known as vitamin D3. The two treatments being compared are ZYMAD 50,000 UI, an oral solution taken in ampoules, and ZYMAD 10,000 UI/ml, an oral solution taken in drops. The purpose of the study is to compare the effectiveness of these two vitamin D supplementation methods in increasing vitamin D levels in the blood.

Participants in the study will be randomly assigned to one of two groups. One group will receive a monthly dose of the medication, while the other group will take a daily dose. The study will last for three months, during which time the vitamin D levels in the participants’ blood will be monitored. The study aims to determine which dosing method is more effective in correcting vitamin D levels in the participants.

Throughout the study, additional health markers such as calcium and phosphorus levels in the blood and urine will be checked. The study will also consider factors like skin type, physical activity, sun exposure, and dietary intake. For participants aged 10 and older, bone mineral density will be measured using a method called DXA, which stands for dual-energy X-ray absorptiometry. This will help assess any changes in bone health during the study period.