The Biggest Organ in the Human Body: Answer & Explanation

If you’ve ever wondered, “What’s the biggest organ in the human body?” the short and correct, answer is:

The skin is the largest organ in the human body.

Medically, there are approximately 78 organs in the human body. However, the number is debated as there isn't a single standard definition of what constitutes an organ. For instance, some researchers recognize structures like the mesentery and the interstitium as organs.

Nevertheless, the biggest one is not hidden deep inside you; it’s right on the surface. If you were thinking it’s the liver, it is the second-largest organ in the body, followed by the lungs. 

Now, let’s see how and why the skin is the largest organ in human body. What does it do all day, and why do nutrition supplements like Vitamin B Complex Gummies matter?

What is the Largest Organ in the Human Body?

Before answering which is the largest organ in human body, let’s figure out whether we are talking in terms of surface area, weight, or volume. Regardless, skin wins in all practical definitions as:

• It covers an average of 20 square feet in adults. 

• It accounts for around 16% of total body weight. 

• It is approximately 2 millimeters thick.

Functions of The Biggest Human Organ 

Your skin is more than just a protective layer; it is a multitasker that functions to:

Protection 

The skin is the body’s first line of defence. It acts as a barrier against germs, chemicals, UV rays, and minor mechanical injuries by forming a waterproof, flexible shield.

Temperature Regulation 

Skin maintains the body’s internal temperature, irrespective of the outside environment. It cools down the body through sweating and narrows blood vessels to conserve heat.

Sensation 

Ever wondered how you pull your hand away from a hot object? That’s because the nerve endings on your skin allow you to feel touch, pain, heat, pressure, temperature, and vibration.

Vitamin D Production 

When exposed to sunlight (UVB), the biggest human organ helps produce Vitamin D, which is essential for bone health, immune function, and overall vitality. 

Immune Response 

Your skin is home to immune cells that help detect and fight germs and other pathogens that enter the bloodstream through the skin layer.

Storage

In addition, the largest organ in the human body serves as a storage house for fat, water, and certain vitamins that reserve energy and nutrients for the body at the time of need.

Health Indicator

Your skin changes its color and appearance to express emotions and health status. For example, blushing, paleness, rashes, or acne indicate feelings and underlying diseases.

Which is The Largest Solid Internal Organ?

What's the biggest organ in the human body? Skin. But when it comes to solid organs, it’s the liver, which is also the second-largest organ in the body overall. 

The liver functions include:

• Breaks down and converts fats, carbohydrates, and proteins to form energy.

• Maintains blood sugar level by storing and releasing glucose as glycogen.

• Neutralises or breaks down drugs, alcohol, hormones, and toxins to remove them safely from the body.

• Produces bile, which helps in the digestion and fat absorption.

• Stores glycogen, vitamin A, D, B12, K, and minerals like iron and copper.

• Forms blood cells in the fetus and acts as a blood reservoir in adults.

After the skin, the liver is the second largest organ in the body, followed by the Brain, Lungs, and Heart. Together, they perform vital functions like protection, detoxification, thinking, breathing, and blood circulation.

Now that you know which is the largest organ in the human body and its functions, let’s see why it is essential to take care of it and how to do so. 

Care Tips for the Largest Human Organ

Ever wondered why doctors look at your skin, eyes, nails, and tongue for signs of deeper issues? That’s because your skin isn’t just about appearance; it's a health indicator. You can know your level of hydration, nutrition, sleep, and stress through your skin.

Thanks to the beauty market, people assume that healthy skin comes from creams, serums, and sunscreens. While this is true to some extent, true nutrition comes from within. 

To achieve your skin goals, you need to ensure some key supplements, including Vitamin C, Vitamin B complex, Vitamin E, Vitamin A, Vitamin D, Collagen, Zinc, Omega-3 fatty acids, and Copper.

However, nutritionists estimate at least a 30% nutrition gap in the usual Indian diet. This means that you are probably not getting 100% of them to maintain your skin barrier, especially vitamin C, B complex, and D. This is where the external supplements step in. 

This is why you should include the following wellness products alongside a balanced diet.

Vitamin C

Vitamin C is everything a middle-aged adult would want for their skin. It brightens the skin, boosts collagen production, reduces hyperpigmentation, and protects against sun damage. Besides this, it assists with wound healing, hydration, and dealing with inflammation and redness.

Consider taking one dose of vitamin C gummies, as you are more likely to take them consistently. They are easy to consume, flavorful, convenient, and offer you extra supplements boost immunity.

Vitamin B Complex Gummies

Vitamin B complex gummies benefit energy production, cell division, nerve function, hydration, RBC formation, and protect against environmental stressors. 

Vitamin B complex gummies are made up of vitamin B1, B2, B3, B5, B6, B7, B9, and B12, which include collagen, biotin, niacinamide, and folate. Together, Vitamin B complex gummies benefit you with the following:

• Improves skin elasticity and reduces wrinkles.

• Help skin cells produce energy and repair themselves.

• Makes skin feel softer and less rough or flaky.

• Reduces inflammation, minimizes fine lines, and fades hyperpigmentation.

• Assists in treating acne, eczema, and rosacea.

• Helps even out skin tone

• Regulate sebum production to reduce clogged pores and breakouts.

Vitamin D

Studies suggest that 60% of people have insufficient levels of vitamin D. In fact, it is the most common micronutrient deficiency. Taking a supplement for the same can help you achieve healthier and structured skin. Moreover, it is beneficial for inflammation that can cause acne. When you treat Vitamin D deficiency, it results in improved energy, immunity, and overall skin health that reflects as better texture and radiance. 

Regardless, remember that wellness products are not magic. You still need a balanced diet, hydration, quality sleep, managing stress, sun protection, and an active lifestyle to see real changes in your skin and overall health.

FAQs

1. What is the biggest organ in the human body?

The largest organ in the human body is the skin.

1. Why is the skin considered the largest organ?

The skin is considered the biggest human organ as it covers the entire body, has a large surface area, and makes up around 16% of total body weight.

1. What are the main functions of the skin?

The skin protects the body, prevents water loss, regulates temperature, allows sensation, helps in vitamin D synthesis, and shows emotional and health status.

1. Is the largest internal organ different from the largest organ overall?

Yes. The largest organ overall is the skin, but the largest internal organ is the liver, which is also the second largest organ in the body.

1. How can I keep my skin—the body’s largest organ—healthy?

Eat a balanced diet, drink enough water, use gentle skincare, protect from the sun, avoid smoking, manage stress and sleep, and maintain basic hygiene to keep your skin and body healthy.