Vitamin D

Vitamin D is a fat-soluble vitamin that is naturally present in a few foods, added to others, and available as a dietary supplement. Read more about Vitamin D, Importance, Deficiency, Latest News.

Vitamin D
Table of Contents

Vitamin D Latest News

A new study says that your vitamin D level in your 30s and 40s is a determining factor of your brain age in your 60s and 70s.

About Vitamin D

  • Vitamin D (also referred to as calciferol) is a fat-soluble vitamin that is naturally present in a few foods, added to others, and available as a dietary supplement.
  • It is also produced endogenously when ultraviolet (UV) rays from sunlight strike the skin and trigger vitamin D synthesis.
  • During periods of sunlight, vitamin D is stored in fat and then released when sunlight is not available.
  • Very few foods naturally contain vitamin D. Most people get vitamin D in their diet from foods that are fortified. This means that vitamin D is added to the food. These foods may include milk, cereal, and yogurt. 
  • Foods that naturally have vitamin D include egg yolks, saltwater fish, and liver.
  • The amount of vitamin D you need each day depends on your age.

Why is Vitamin D So Important?

  • Vitamin D promotes calcium absorption and helps maintain adequate levels of calcium and phosphorus in the blood, which is necessary for healthy bones and teeth.
  • Without sufficient vitamin D, bones can become thin, brittle, or misshapen.
  • Vitamin D has other roles in the body, including reduction of inflammation as well as modulation of such processes as cell growth, neuromuscular and immune function, and glucose metabolism.

Vitamin D Deficiency

  • In children, vitamin D deficiency causes rickets, a disease in which the bones become soft, weak, deformed, and painful. 
  • In teens and adults, vitamin D deficiency causes osteomalacia, a disorder that causes bone pain and muscle weakness.
  • Vitamin D deficiency may be more common in people with higher skin melanin content (darker skin) and who wear clothing with extensive skin coverage.

Can Vitamin D be Harmful?

  • Very high levels of vitamin D in your blood can cause nausea, vomiting, muscle weakness, confusion, pain, loss of appetite, dehydration, excessive urination and thirst, and kidney stones
  • Extremely high levels of vitamin D can cause kidney failure, irregular heartbeat, and even death. 

Source: NDTV

Update Icon
Latest UPSC Exam 2026 Updates

Date IconLast updated on Sep, 2026

UPSC 2027 Notification will be released on 13 January 2027 at upsconline.nic.in.

→ Check out the latest UPSC Syllabus here.

→ Download UPSC Model Answers for Mains 2026

UPSC Mains Question Paper 2026 is out now for Essay & GS Paper 1, 2, 3 & 4.

UPSC Calendar 2027 has been released.

→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.

→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.

→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.

→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.

→ Also check Best UPSC Coaching in India

Vitamin D FAQs

Q1. Is Vitamin D fat-soluble or water-soluble?+

Q2. How is Vitamin D produced in the human body?+

Q3. What is the primary function of Vitamin D in the body?+

Q4. What disease is caused by Vitamin D deficiency in children?+

Tags: prelims pointers upsc current affairs upsc prelims current affairs vitamin d

Vajiram Content Team
At Vajiram & Ravi, our team includes subject experts who have appeared for the UPSC Mains and the Interview stage. With their deep understanding of the exam, they create content that is clear, to the point, reliable, and helpful for aspirants.Their aim is to make even difficult topics easy to understand and directly useful for your UPSC preparation—whether it’s for Current Affairs, General Studies, or Optional subjects. Every note, article, or test is designed to save your time and boost your performance.
UPSC GS Course 2027
UPSC GS Course 2027
₹1,80,000
Enroll Now
GS Foundation Course 2 Yrs
GS Foundation Course 2 Yrs
₹2,45,000
Enroll Now
UPSC Mentorship Program
UPSC Mentorship Program
₹65000
Enroll Now
UPSC Sureshot Mains Test Series
UPSC Sureshot Mains Test Series
₹27000
Enroll Now
Prelims Powerup Test Series
Prelims Powerup Test Series
₹14000
Enroll Now
Enquire Now