Is sunlight healthier than taking a vitamin D supplement?

Sunlight and vitamin D supplements are not the same. Supplements can be valuable when vitamin D levels are low or sun exposure is limited, but sunlight also provides additional biological signals that influence circadian rhythms, nitric oxide release, immune regulation, and other pathways that scientists continue to study.

How much sunlight should I get each day?

There is no single recommendation that applies to everyone. Healthy sunlight exposure depends on skin type, geographic location, season, time of day, age, and overall health. The goal is regular, appropriate exposure while avoiding sunburn.

Can I produce vitamin D through a window?

No. Standard window glass blocks most UVB wavelengths, preventing the skin from producing meaningful amounts of vitamin D even though visible light still enters the room.

Is vitamin D the only health benefit of sunlight?

No. Research suggests sunlight influences numerous biological systems beyond vitamin D production, including circadian rhythm regulation, nitric oxide release, immune function, mood, and other physiological pathways.

Is this article suggesting people should avoid sunscreen?

No. Avoiding sunburn remains important. This article explains the biology of sunlight and encourages a balanced understanding of healthy sun exposure while minimizing the risks of excessive exposure.

Why does functional medicine focus so much on lifestyle?

Functional medicine recognizes that the body constantly responds to environmental information. Nutrition, sleep, stress, movement, relationships, and sunlight all influence how the body functions. Addressing these foundational factors often supports health more effectively than focusing only on symptoms.

Can restoring healthy sunlight exposure cure chronic disease?

No single lifestyle factor cures every condition. However, restoring healthy environmental signals, including appropriate sunlight exposure, may support the body's natural ability to regulate many physiological systems as part of a comprehensive health strategy.

Why do you describe the body as listening?

Every organ continuously receives and responds to information from both inside and outside the body. Hormones, nerves, nutrients, microbes, movement, and environmental signals all communicate with your cells. Understanding those conversations is one of the central principles of functional medicine.

Natural Health and Wellness Information

Jun 18

Love0

Morning sunlight providing natural UVB light that supports healthy biological communication and vitamin D production.

The Missing Wavelength: How Modern Life Quietly Disconnected Us From One of Nature’s Most Powerful Healing Signals

By Mark Scott Functional Medicine, Total Health

During nearly thirty years in practice, I've asked one simple question: Why do so many people still feel unwell despite having more health information than ever before? The answer may begin with one tiny wavelength of sunlight that modern life has quietly taken away. Discover how UVB, the skin, and your body's remarkable communication systems work together to influence health…

May 26

Love0

Person enjoying healthy sun exposure with protective shade illustrating smarter sun protection strategies

The Sunscreen Myth: Are You Really Protected From Sun Damage?

By Mark Scott Functional Medicine, Total Health

The Sunscreen Myth: Are You Really Protected From Sun Damage? For decades, we’ve been told that sunscreen is one of the most important things we can do to protect our skin. And while sunscreen certainly has a role, there’s a bigger conversation that many people never hear. The truth is this: Preventing a sunburn is not the same thing as…

Feb 24

Love0

Beginner’s Guide to Intermittent Fasting

By Mark Scott Functional Medicine, Total Health, Weight Loss

A Science-Based, Practical Approach to Fasting for Better Health Intermittent fasting (IF) has become one of the most popular health strategies in the world — and for good reason. In my practice, I’ve seen how the proper use of fasting can support weight loss, metabolic health, and even long-term disease prevention. But it’s important to understand: intermittent fasting is not…

Feb 16

Love0

How to Get a Good Night’s Sleep

By Mark Scott Fatigue, Fibromyalgia, Functional Medicine, Hormones, Total Health

A Functional Medicine Approach to Restoring Deep, Restorative Sleep By Dr. Scott Sleep is still one of the great mysteries of human biology. Like gravity or the quantum field, we don’t fully understand why we sleep — but we absolutely know this: Sleep is one of the cornerstones of health. Most adults need 6–8 hours per night, and both too…

Jan 29

Love0

Dr. Scott’s Favorite Supplements—Glycine

Dr Scotts favorite supplements gylcine

By Mark Scott Total Health

While dietary supplements cannot take the place of a healthy lifestyle, they can be used strategically to boost your health, especially in cases of deficiency. In the U.S., 57.6% of adults aged 20 and over, use supplements, with multivitamins, vitamin D and omega-3 fats representing the top three. Another survey put the percentage of Americans using supplements at 86%. So, it's…

Jan 29

Love0

Dr. Scott’s Favorite Supplements — B Complex

By Mark Scott Total Health

Dr. Scott’s Favorite Supplements While dietary supplements cannot take the place of a healthy lifestyle, they can be used strategically to boost your health, especially in cases of deficiency. In the U.S., 57.6% of adults aged 20 and over, use supplements, with multivitamins, vitamin D and omega-3 fats representing the top three.1 Another survey put the percentage of Americans using supplements…

Apr 24

Love0

7 Budget-Savvy Tips for Practicing Yoga at Home While Self-Isolating

By Mark Scott Total Health

7 Budget-Savvy Tips for Practicing Yoga at Home While Self-Isolating Not being able to get to the yoga studio can put a real damper on your practice. Still, self-isolating is the best way to keep yourself, your family and your community healthy. So how can you strike a balance between staying inside and sticking to your yoga goals? Well you…

Mar 30

Love0

Illustration comparing hyper and hypo immune responses, highlighting the effects of overactive and underactive immune systems.

Do you have a hyper or hypo immune response?

By Mark Scott Total Health

In the midst of the COVID-19 pandemic, we’ve received some questions from our community about what to do differently if you have an overactive or underactive immune system. First, I think it’s best to take a step back and ask, “How do you know you have an overactive or underactive immune system?” There are some situations that have a high…

Mar 08

Love0

Digestion Herbs

By Mark Scott Digestion and Digestive Disorders, Total Health

The Power of Digestive Herbs… And Which Ones Matter Most Digestion… The under-appreciated process that drives life and well being. Digestion begins once food enters the mouth, where chewing and saliva start the break down process. A quick swallow and consumables are sent to the stomach, ready for the real action to commence. As the acids and enzymes transform…

Feb 11

Love2

How To Correctly Test For Adrenal Fatigue

By Mark Scott Total Health

Often new patients come into our practice complaining of tiredness, where the alarm disturbs rather than wakes and getting up and ready for each day is difficult. Coffee is reported as an indispensible best friend, although it doesn’t ease the brain fog or poor memory. Energy slumps snatch their focus at around 3-5pm and 7-10pm, yet if they stay up…

Total Health

The Missing Wavelength: How Modern Life Quietly Disconnected Us From One of Nature’s Most Powerful Healing Signals

The Sunscreen Myth: Are You Really Protected From Sun Damage?

Beginner’s Guide to Intermittent Fasting

How to Get a Good Night’s Sleep

Dr Scotts favorite supplements gylcine

Dr. Scott’s Favorite Supplements — B Complex

7 Budget-Savvy Tips for Practicing Yoga at Home While Self-Isolating

Do you have a hyper or hypo immune response?

Digestion Herbs

How To Correctly Test For Adrenal Fatigue

Welcome To Total Health Center

Categories

RECENT POSTS

Contact

Total Health Center

CONDITIONS WE TREAT

Featured Articles

ACKNOWLEDGEMENT

Contact Info