Vitamin D Guide: Types, Sources, Benefits & Deficiency Explained by Dr. Mounika Jetti

Vitamin D is a vital nutrient that promotes bone strength, immune function, and overall health. One of the critical uses of vitamin D is helping the body absorb calcium. Although the body makes vitamin D through sunlight, many people still develop vitamin D deficiency due to insufficient sun exposure or health conditions. Common vitamin D deficiency symptoms include tiredness, low mood, frequent illness, and muscle pain. If it is not treated, it can cause serious health problems. To prevent deficiency, include vitamin D-rich foods such as fatty fish, egg yolks & fortified dairy products in diet. These are some of the best sources of vitamin D and including these vitamin D food sources help maintain healthy vitamin D levels.

In this video, Dr. Mounika Jetti, a General Physician and Diabetologist, explains everything about vitamin D — how the body produces it, who’s at risk of deficiency, and how much is needed daily. She discusses blood tests used for diagnosis and whether sunlight alone can provide sufficient vitamin D. She also covers significant vitamin D benefits like stronger immunity and improved mood, and its role in conditions like psoriasis. She shares why vitamin D is essential during pregnancy and warns against taking supplements without a doctor’s advice. Understanding the right sources of vitamin D through sun exposure, food, or supplements helps prevent deficiency and supports long-term health.