PRIME DAY: 25% OFF sitewide with code PRIMETIME**
Dark blue supplement bottle against a powder blue background.
BrainMD Vitamin D3 5000: purple supplement bottle surrounded by brief phrases highlighting product benefits
BrainMD Vitamin D3 5000: person taking a white capsule from his hand with supplement bottle in the background
BrainMD Vitamin D3 5000: woman putting a purple supplement bottle into a green carry bag
BrainMD Vitamin D3 5000: a purple supplement bottle and white capsules against an interior white background
BrainMD Vitamin D3 5000: infographic, supplement facts box

Vitamin D3 5000

Vitamin D3 5000

High potency vitamin D3*

Subscribe & Save
One-time purchase
  • Free Shipping on Orders $75+
  • Subscribe & Save up to 25% + Free Shipping
  • 100% Money Back Guarantee

Description

Vitamin D3 5000 delivers 5,000 IU of your body’s preferred form (cholecalciferol) in one high-potency capsule—supporting brain function, emotional well-being, immune strength, and bone health.* With 100 capsules per bottle, you’ll get over 3 months of powerful, doctor-recommended support.*

Key Benefits

Mood

Circulation

Immunity

Aging Success

Key Ingredients

We only use clinically researched ingredients backed by science. Every formula is crafted with pure, high-quality nutrients at effective doses designed for safety, potency, and real results you can trust.
Soy Free
Sugar Free
Dairy & Egg Free
Gluten Free
Soy Free
Sugar Free
Dairy & Egg Free
Gluten Free

Vitamin D3

5000 IU
Vitamin D3 is essential for supporting hormone regulation and immune function—both of which can play a significant role in managing PMS symptoms.* This formula delivers 1,000 IU of vitamin D3, the most bioavailable form, to help balance mood, reduce acne flare-ups, and ease physical discomfort.* By supporting hormonal balance and calming inflammatory responses, vitamin D3 promotes clearer skin, a more stable mood, and overall menstrual well-being.*

Supported by Clinical Research

Vitamin D3 Shows Promise in Age-Related Neurological Disorders
Recent clinical and mechanistic findings

This study highlights vitamin D3’s neuroprotective effects and its potential role in preventing or managing age-associated cognitive decline and neurological disorders.

(Skv 2024)
BrainMD
The Power Of Vitamin D

The Most Underrated Nutrient For Your Brain & Body*

Research shows vitamin D helps regulate over 2,000 genes and is essential for brain health, emotional balance, and immune strength.* But an estimated 42% of U.S. adults are vitamin D deficient, with even higher rates in colder seasons or among people who spend most of their time indoors.* And that matters: studies show that low D levels may be as harmful to your health as smoking.*²

The good news? One high-potency capsule a day can help restore healthy levels and support how you think, feel, and function—year-round.*

Expert Reviews

“Vitamin D deficiency is one of the most overlooked contributors to low mood, fatigue, and poor immunity. I recommend BrainMD’s Vitamin D3 5000 to nearly all my patients. It’s high-quality, effective, and reliably gets results.”

Dr. Daniel Amen

Founder, BrainMD & Amen Clinics
BrainMD
Better D3 = Better Results*

High Potency, Doctor Preferred*

Ours delivers 5,000 IU of D3 in cholecalciferol form—the same type your body makes from sunlight—for optimal absorption and real, long-lasting benefits like sharper thinking, stronger immunity, and better mood regulation.* It’s doctor-recommended, clinically dosed, and designed to optimize your vitamin D levels with consistent use.*
BrainMD

What To Expect

Week 1

Some users notice an early lift in mood, energy, and resilience as immune function gets an initial boost.*
Week 4

With consistent use, Vitamin D3 supports more stable immune defenses, better calcium absorption, and improved muscle performance—helping you feel stronger day to day.*
2–3 Months

Blood levels of Vitamin D begin to reach an optimal range, promoting long-term bone strength, cardiovascular health, and balanced mood. Many notice fewer seasonal dips in energy and immunity.*
6 Months+

Sustained use helps maintain healthy vitamin D status year-round, reducing deficiency risk and supporting lifelong resilience in bones, immunity, and whole-body vitality.*

FAQ

Got questions? We’ve got answers. Explore our FAQs or chat with our AI assistant for instant support.

BrainMD

Overall rating: 4.8333335 / 5 from 252 reviews.

AI Generated Review Summary

Vitamin D3 5000 offers high-potency support for brain function, emotional well-being, immune strength, and bone health. Customers appreciate its quality and effectiveness, though some noted mixed results regarding mood and overall health. The supplement is praised for its convenience and suitability for those with limited sun exposure.

Summary topics

  • Vitamin D Quality (7%): Customers loved the vitamin D, with many describing it as the best they have ever taken.
  • Energy and Sleep Quality (7%): Customers appreciated that the product greatly impacts their energy level and greatly improves their sleep quality.
  • Supplement Satisfaction (10%): Customers expressed satisfaction with the supplement, stating it was great, excellent quality, and very effective.
  • Product Quality (13%): Customers appreciated the high quality of the products, with multiple mentions of excellent quality and clean ingredients.
  • Mental Well-being Improvement (7%): It was highlighted by customers that taking these supplements made them feel great and significantly improve mental well-being.

Review topics: ["feel","quality","sun","supplement","results","stomach","amount","vitamins","ingredients","value","level","vitamin d","difference","capsules","works","effect","dosage","brand","mood","support","brainmd","service","test","health","use","pills","range","doctor","brain","gels"].

Review highlights

  • "Clean, High Quality Ingredients Clinically Proven, High Quality Vitamin D Works Great!" — Amber P.
  • "Great quality Vitamin D, I just trust this brand with everything :)" — Sue B.
  • "I love that this is a good quality Vitamin D. Thanks" — Marie P.

Reviews

Great Product

"This is the only Vitamin D that actually works. My numbers go up and I feel so much better when I take them. Very easy to swollen and no after taste."

— Lisa B. (5/5)

One of the best Vitamin

"One of the best Vitamin D supplements on the market."

— shabnam o. (5/5)

Vitamin D

"I was very happy with this project! I had many bruises on my legs and some on my arms which cleared up immediately. My B/P also reduced which I had been struggling with"

— Shirley T. (5/5)

Consistently good

"I’ve taken this for years."

— Sara B. (5/5)

Vitamin D

"This brand is probably the cleanest Vitamin D I've purchased! BrainMD has gained another loyal customer!"

— Estefania M. (5/5)

Vitimin D

"Love knowing there is a brand out there that I can trust!"

— Amy S. (5/5)

effective

"This product is awesome. I love that it is in powder form and not a soft gel. Blood work shows the results!"

— Taylor M. (5/5)

Great 👍

"Great product, but I recommend ordering the D3 with K2"

— Charaine V. (5/5)

D3

"Easy to use"

— Nancy L. (5/5)

Vit. D3

"Amazing product!"

— Brent B. (5/5)

Q&A