Fitness Tabs$59.95 every 2 months$59.95 / 2 moVitalFactors$89 every 4 weeks with subscription$89 / 4 weeks
Daily nutrition,
for over 40 years
4.9 after 40 years · over 2 million customers
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From the people who take MDR
“I have been taking these MDR vitamins for years!”
Family-owned
since 1984
MDR stands for Medical Doctors Research. For more than 40 years our family has made formulas that help people stay healthy, active and independent as they age.
- 40+years of formulas
- 2M+customers
- Freeshipping on Subscribe & Save
Real people answer at 1-800-637-8227
Best Sellers
View allFrom the people who take MDR
“Fitness and nutrition go hand in hand, which is why I take VitalFactors as my favorite natural energizer.”
Chris CuomoTV journalist, NewsNation · VitalFactors customer“VitalFactors is part of my training routine. 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 active.”
“I have taken VitalFactors and other MDR products religiously for over 30 years! When you think I topped the charts before Elvis, and I am still performing, feeling great at 92, you can see why I call VitalFactors my Fountain of Youth!”
Pat BooneLegendary Singer & Film Star · VitalFactors customer“I use the MDR Fitness Tablets in conjunction with the MDR Stress Release Tabs and have taken them for over 25 years. Excellent products.”
…and more, published word for word since 2012
“Best multivitamin on the market. Morning formula and evening formula.”
“This is a great formula….i love that the capsule is so small and goes down easily with no after taste. I do feel more flexible and my last physical with the doctor shows i am in great sha…”
“Best product to support the inmunoterapia.”
“Can't say enough on this high-quality product my energy feels grate taking these tab AM/PM is the best? Thank you MDR”
“Utilized for years on and off great. You can tell the difference when out of product.”
“Been taking VitalFactors for two months. Love the taste so much that it has become my favorite drink. Hate that I’m supposed to skip 2 days a week but I follow the regimen and am feeling…”
“Huge fan of Fitness Tab for Women. My energy has been through the roof and I have never felt better.”
“It’s used for overall health. It’s a little on the expensive side.”
“I love this and every other MDR product I have ever used. They definitely work and the prices are very reasonable. I can also take them with other products.”
“At age 76, I feel my absolute best when I take Vital Factors. It provides me the energy I need and the mental alertness to accomplish my goals on a daily basis. Also helps me accomplish m…”
“Have tried others but always come back to MDR”
“I have been taking these vitamins since I was in my 30's. That's a long time ago (not telling how long). I have always enjoyed great health, and I wouldn't change for anything! Please kee…”
“THIS PRODUCT IS WAY BETTER THAN ALL MY EXPECTATIONS. IT IS MY FAVORITE SUPPLIMENT. I AM 71. THANK YOU”
“I'm 62 years old and have taken many vitamins over the years, but this is the only vitamin I have ever taken that actually makes me feel healthier.”
“I've been taking/drinking Vital Factors for at least 20 years and never want to stop. The benefits are amazing! Thank you for making such a great vitamin drink.”
“I have been a competitive runner for four decades, so my need for strong supplements to keep me going is exceptional. At one time, I to try a lower priced product that seemed like it was…”
“These are the best vitamins we have ever taken, Have tried others but always come back to these”
“We have more energy and calmness simultaneously. Great bargain and products”
“I have more energy and my vision is clearer. My body does not feel tired.”
“I believe these to be a very good value. At $1.19 per day for vitamins and stress defense for both men and women. Would be even less per day if both parties would be consistent in taking…”
“I've been taking these supplements for twenty years and they are the best! As MDR provides the latest information with regard to quality ingredients, you can be sure that you're getting j…”
“Been using for 15 years. Wouldn’t use anything else”
“Taking per package instructions… so far so good. The taste is pleasant but hard to describe. I will continue with this system. Thank you”
“If it works for you like it did for me you’ll find that you sleep better, wake up more refreshed, have more positivity, mental focus and clarity. I’m able to remember more. I even get my…”
“Love this, but I wigh it was a little cheaper. My stamina is great, when taken.”
“MDR vitamins were recommended by a friend and within 1 week I had so much more energy and stamina. Thanks 🙏”
“I have been taking these MDR vitamins for years! I feel so good all the time...these are worth the money for sure.”
“Stress Defense is the best. I’m not sure if they reduce the stress in my life but they certainly give me the energy to deal with everything!”
“I love the energy and brain power I get when I take my Vital Factors ⭐️ I am a senior citizen, and it has revived my energy. I started taking one tablet in the morning but now I take 2🥰a…”
“it's an absolute win, after almost 3 years with forced naps during the day, going to bed at 7 or 8 pm and extremely low energy. I purchased it after using some sample that came with my or…”
“I appreciate the fact you removed titanium dioxide from your formula and added Iodine. I came back to this product because you removed titanium dioxide and iodine is a necessary nutrient.…”
“Have tried others but always come back to MDR”
“I’m enjoying the vitamins and see the benefit of them”
“I'm not sure how many people know about MDR since they don't advertise as much, but they are around in vitamin business since 90's as far back as I know. I used to order with PAPER ORDER…”
“Taken these’s supplements for years ! Work well for me”
“Been using the Fitness tabs and these for 30+ years. Simply the Best”
“Best , will make you feel better and think clearer all day .”
“it is a vitamin you take 2 times a day, they work fine, if i miss a few days, i feel the difference.”
“Product easy to use, tablet dissolves easier now, and gives me more energy and focus just after a few days of starting it!”
“We have more energy and calmness simultaneously. Great bargain and products”
“I have been taking VitalFactors for several years now and I can say I definitely see and feel the difference! I follow the recommended usage of five days on/two days off and it is working…”
“I believe these to be a very good value. At $1.19 per day for vitamins and stress defense for both men and women. Would be even less per day if both parties would be consistent in taking…”
“Have been using this supplement for years ! Excellent in theses crazy stressful day’s we are experiencing . Let’s you have a more restful outlook !”
“Simply the best! I've been taking the Fitness Tabs for more than 10 years and wouldn't consider any other brand.”
Family-owned since 1984
MDR stands for Medical Doctors Research. For more than 40 years our family company in Sunrise, Florida, has helped customers keep their health, vitality and independence as they age.
Physicians, scientists and researchers contribute to our formulas, and we keep them up to date with the latest sound science.
More about MDRYour age‑defying energy drink
VitalFactors is MDR’s effervescent NAD+ formula. Drop two in a glass of water on weekday mornings: energy, focus, and healthy aging in one fizzy ritual.
Your Daily AM + PM Nutrition System
The original multivitamin, split into a morning and an afternoon tablet, one formula for men, one for women.
Clinical nutrition,
refined since 1984
Many of our customers have made MDR part of their day for decades.
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