Daily nutrition,
made simple.
- Since 1984
Doctor-formulated nutrition
Forty-one years of refinement, eleven patent updates.
- 35 formulas
Built for daily wellness goals
Energy, focus, immunity, joints, healthy aging.
- AM + PM
Patented two-tablet system
Twice-daily dosage for absorption you can rely on.
- 60-day
Satisfaction guarantee
Try any MDR formula risk-free. Full refund.
Best sellers.
Two tablets,
thirty-second dissolve.
VitalFactors is MDR’s effervescent NAD+formula. Drop two in a glass of water each morning — energy, focus, and healthy aging in one daily ritual.
Built around Super NAD+.
- Cellular energy supportSuper NAD+ with antioxidants, vitamins, and botanicals for daily energy and healthy aging.
- B vitamins for daily performanceB12, B6, niacinamide, riboflavin, and thiamin for energy metabolism, focus, and nervous system function.
- Resveratrol, EGCG, and S.O.D.Grape resveratrol, green tea EGCG, and melon S.O.D. for antioxidant defenses.
- One glass. No handful of pills.Drop the tablets in water and drink. Easy to fit into your morning.
One after breakfast.
One after lunch.
A patented AM and PM multivitamin system designed to split daily nutrient coverage across the day. Choose the men's or women's formula, each built with a different nutrient profile.
- Doctor formulated since 1984
- Patented AM and PM system
- 60 day satisfaction guarantee
- Free US shipping over $50
Built for men's daily coverage.
The men's formula uses the same patented AM and PM system, with a nutrient profile adjusted for men. Compared with the women's formula, it includes lower iron, higher selenium, and higher total vitamin C based on the Supplement Facts panel.
AM tablet, after breakfast
Includes vitamin A carotenoids, vitamin C, D3, E, B vitamins, calcium, iodine, magnesium, zinc, selenium, chromium, and odorless garlic.
PM tablet, after lunch
Adds additional daily support with vitamin A, vitamin C, D3, E, B vitamins, calcium, magnesium, selenium, and odorless garlic.
What is different from women's
Lower iron. Higher selenium. Higher total vitamin C. Higher PM garlic.
Why AM and PM
The patented AM and PM format separates the daily formula into two tablets taken with food, rather than one large multivitamin taken once.
Dietary supplement. Not intended to diagnose, treat, cure, or prevent any disease.
Same patented AM and PM system. Different nutrient profiles.
Both men's and women's Fitness Tabs split daily multivitamin support into two tablets: AM after breakfast and PM after lunch. The difference is the nutrient profile.
- Lower iron
- Higher selenium
- Higher total vitamin C
- Higher PM garlic
- 60 AM tablets plus 60 PM tablets
- Higher iron
- Higher total calcium
- Higher total B6
- Higher PM zinc
- 60 AM tablets plus 60 PM tablets
Choose the formula built for you.
Built for women's daily coverage.
The women's formula uses the same patented AM and PM system, with a nutrient profile adjusted for women. Compared with the men's formula, it includes higher iron, higher total calcium, higher total B6, and higher PM zinc based on the Supplement Facts panel.
AM tablet, after breakfast
Includes iron, B vitamins, vitamin C, D3, vitamin E, carotenoids, calcium, iodine, magnesium, zinc, selenium, chromium, and odorless garlic.
PM tablet, after lunch
Adds additional daily support with calcium, magnesium, selenium, vitamin C, D3, vitamin E, B vitamins, and zinc.
What is different from men's
Higher iron. Higher total calcium. Higher total B6. Higher PM zinc.
Why AM and PM
The formula is split into two tablets taken with food: AM after breakfast and PM after lunch.
Dietary supplement. Not intended to diagnose, treat, cure, or prevent any disease.
Pick your formula.
Both formulas use MDR's patented AM and PM system. Choose the nutrient profile that fits you.
Lower iron, higher selenium, and higher total vitamin C compared with the women's formula.
Shop Men For WomenWomen Fitness TabsHigher iron, higher total calcium, higher total B6, and higher PM zinc compared with the men's formula.
Shop Women60 day satisfaction guarantee · Free US shipping over $50 · Real phone support.
Find what your body needs.
Pick where to start. Every formula maps to a daily goal.
From the people taking MDR every day.
“Fitness and nutrition unite for a vibrant, healthy lifestyle. That’s why I take VitalFactors as my favorite natural energizer!”
“VitalFactors helps keep my immune system strong. I’ve run the Badwater 135-mile ultramarathon in Death Valley 12 times, and I rely on VitalFactors and other MDR products to stay physically fit and mentally sharp.”
“I’ve been taking VitalFactors and other MDR vitamins for over 20 years. I topped the charts before Elvis, and at 91 I’m still active and strong—that’s why I call VitalFactors my ‘fountain of youth.’”
“I use the MDR Fitness Tablets in conjunction with the MDR Stress Release Tabs and have taken them for over 25 years. Excellent products.”
Before you start.
What makes MDR different from other supplement brands?
For more than 35 years, Medical Doctors Research has developed advanced nutrition formulas with input from physicians, scientists, and nutrition researchers. The focus is ingredient quality, balanced dosing, and formulas built for daily use — not generic, one-size-fits-all supplementation.
How do I know which MDR product is right for me?
Start with your main goal — daily foundation, energy and focus, healthy aging, joint support, immune support, heart health, digestion, vision, or skin support — and choose the formula that matches what you're trying to improve.
What is MDR's return policy?
MDR offers a satisfaction guarantee. Please see our Refund and Returns policy for current details.
Are MDR products doctor developed?
Yes. MDR formulas are developed with input from physicians, scientists, and researchers across nutrition, aging, sports medicine, biochemistry, food science, and public health. The goal is practical, balanced formulas built around real daily health needs.
How does MDR auto-delivery work?
Auto-delivery sends your selected MDR products on a regular schedule so you stay consistent without thinking about it. Manage shipments, change timing, skip a delivery, or cancel anytime from your account.
Forty-one years of
clinical formulation.
Doctor-formulated since 1984. The same daily routine — refined every year for forty-one running. That’s the whole offer.
Doctor-formulated · Made in the USA · Free US shipping over $50