Douglas Labs Ultra Preventative X
Multivitamin Review
Douglas Laboratories Ultra Preventive X is ranked #3 in our comparison of over 100 popular multivitamin brands available on the market in North America. Below is our summary of the strong and weak points of this product, based on analysis conducted by the MultivitaminGuide.org team.
Product Strengths
- Contains 67 nutrients: (the average multivitamin contains only 32 nutrients) making Ultra Preventive X one of the most comprehensive vitamin supplements on the market.
- Natural nutrients: Contains natural beta carotene, vitamin E and vitamin B12 (methylcobalamin), which means that the nutrients can be more easily absorbed by your body.
- High potency: The multivitamin has elevated amounts of all vitamins which makes it very potent and you are likely to see results from it more quickly.
- Organic blend: Contains an organic fruit and vegetable blend, which adds extra beneficial nutrients to the standard vitamins and minerals.
- Natural Folate: Contains Metafolin, a natural form of Folate (vitamin B9) which is more readily absorbed by your body than conventional Folic Acid.
Product Weaknesses
- No enteric coating: Since the tablets and capsules are not enteric-coated certain nutrients may be degraded by the acid in your stomach, resulting in their incomplete absorption.
- Bulky: 9 capsules or 6 tablets need to be taken on a daily basis, making it a bit less convenient to take.
- Long-term use safety concern: Excessive amounts of vitamin A, equal to 300% of the Recommended Daily Allowance, may cause undesired side effects if taken over a long period of time.
The bottom line
Overall Ultra Preventive X by Douglas Labs is an excellent product and we recommended it for individuals who need a highly potent multivitamin in order to recover from an illness or by athletes with elevated requirements for vitamins and minerals.
Due to the very high amounts of vitamin A included, however we are hesitant to recommend this product for long terms use due to the risk of vitamin overdose, which can be associated with mild side effects such as dizziness, diarrhea, and stomach upset. Or in more extreme cases lung cancer and liver damage.
Also if you have a sensitive stomach, a multivitamin with enteric coating may work better for you.
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How does Douglas Labs Ultra Preventative X compare with other multivitamin brands?
MultivitaminGuide.org offers comparison between the Douglas Labs Ultra Preventative X multivitamins and of all major vitamin supplements available on the market.
Some of the unique aspects of this guide include comparison of the Douglas Labs Ultra Preventative X multivitamins with 100 other vitamin supplement products, including popular brands such as One-A-Day, GNC, Equate, Kirkland, Shaklee, Nature Made, NOW Foods, Melaleuca, Puritan’s Pride, Herbalife, TwinLab, and Walgreens.
The information on this site is the culmination of over 6 years of scientific research and analysis. Each of the reviewed products is evaluated against 4 key parameters, such as composition, bioavailability, potency and safety. Then each supplement is assigned a score from 0 to 10, which enables you to easily compare the effectiveness of different brands.
Ranking of all evaluated multivitamins
The table below provides a summary of the Effectiveness Scores of some of the more popular vitamin supplement brands available on the market, including the Douglas Labs Ultra Preventative X multivitamins.
Any vitamin supplement with a score that exceeds 8.0 is considered to be "excellent". For that reason, using a multivitamin product with a score of 8.0 or above is strongly advised.
| Rank | Manufacturer | Product | Multivitamin | Score |
|---|---|---|---|---|
| 1 | Xtend-Life Natural Products | Total Balance | Total Balance by Xtend-Life |
9.6 |
| 2 | NATURELO Premium Supplements | Whole Food Multivitamin | Whole Food Multivitamin by NATURELO Premium Supplements |
9.5 |
| 3 | Douglas Laboratories | Ultra Preventive X | Ultra Preventive X by Douglas Labs |
9.3 |
| 4 | USANA Health Sciences | HealthPak | HealthPak by USANA |
8.9 |
| 5 | Dr. Mercola | Whole Food Multivitamin PLUS | Whole Food Multivitamin PLUS by Dr. Mercola |
8.8 |
| 6 | Shaklee | Vitalizer | Vitalizer by Shaklee |
8.7 |
| 7 | Life Extension | Life Extension Mix | Life Extension Mix by Life Extension |
8.6 |
| 8 | Metagenics | Wellness Essentials | Wellness Essentials by Metagenics |
8.5 |
| 9 | Nutrilite (Amway) | Double X | Double X by Nutrilite |
8.3 |
| 10 | Garden of Life | Vitamin Code | Vitamin Code by Garden of Life |
8.2 |
| 11 | Source Naturals | Life Force | Life Force by Source Naturals |
8.1 |
| 12 | Karuna | Maxxum 4 | Maxxum 4 by Karuna |
7.9 |
| 13 | Solgar | Omnium | Omnium by Solgar |
7.8 |
| 14 | Optimum Nutrition | Opti-Men | Opti-Men by Optimum Nutrition |
7.7 |
| 15 | Muscle Pharm | Armour-V | Armour-V by Muscle Pharm |
7.6 |
| 16 | Dr. Julian Whitaker's | Forward Multi-Nutrient | Forward Multi-Nutrient by Dr. Julian Whitaker's |
7.6 |
| 17 | FreeLife | Reverse! | Reverse! by FreeLife |
7.2 |
| 18 | Mountain Naturals of Vermont | Superior Care | Superior Care by Mountain Naturals of Vermont |
7.1 |
| 19 | amni | Added Protection III | Added Protection III by amni |
7.0 |
| 20 | Purity Products | Perfect Multi Focus Formula | Perfect Multi Focus Formula by Purity Products |
7.0 |
| 21 | Universal Nutrition | Animal Pak | Animal Pak by Universal Nutrition |
6.9 |
| 22 | Doctor's Nutrition | Mega Vites | Mega Vites by Doctor's Nutrition |
6.8 |
| 23 | DaVinci Laboratories | Spectra | Spectra by DaVinci Laboratories |
6.8 |
| 24 | GNC | GNC Mega Men Sport | GNC Mega Men by GNC |
6.8 |
| 25 | TwinLab | Daily One Caps with Iron | Daily One Caps with Iron by TwinLab |
6.7 |
| 26 | FoodScience of Vermont | Superior Care | Superior Care FoodScience of Vermont |
6.6 |
| 27 | Puritan's Pride | High Potency Ultra Vita Time Release | High Potency Ultra Vita Time Release Puritan's Pride |
6.5 |
| 28 | Colgan Institute | Formula MCS | Formula MCS Colgan Institute |
6.4 |
| 29 | Rainbow Light | Women's One Multivitamin | Advanced Nutritional System by Rainbow Light |
6.4 |
| 30 | NOW Foods | Multiple Vitamins - Liquid Gels | Multiple Vitamins - Liquid Gels by NOW Foods |
6.4 |
| 31 | EAS | Multi-Blend | Multi-Blend by EAS |
6.3 |
| 32 | Mannatech | PhytoMatrix | PhytoMatrix by Mannatech |
6.2 |
| 33 | Nature's Way | Alive! Whole Food Energizer | Alive! Whole Food Energizer by Nature's Way |
6.1 |
| 34 | Jean Carper's | Stop Aging Now! | Stop Aging Now! by Jean Carper's |
6.0 |
| 35 | Natural Factors | MultiStart | MultiStart by Natural Factors |
5.9 |
| 36 | Advanced Physician's Products | Maximum MultiVitamin/Mineral without Iron | Maximum MultiVitamin by Advanced Physician's Products |
5.8 |
| 37 | EcoNugenics | Longevity Rhythms Gold | Longevity Rhythms Gold by EcoNugenics |
5.8 |
| 38 | Solaray | Iron-Free Spectro Multi-Vita-Min | Iron-Free Spectro Multi-Vita-Min by Solaray |
5.8 |
| 39 | Nature's Blend | Vitaminix Ultimate | Vitaminix Ultimate by Nature's Blend |
5.6 |
| 40 | Pharmanex (Nu Skin) | LifePak Prime | LifePak Prime by Pharmanex (Nu Skin) |
5.4 |
| 41 | Melaleuca | Vitality Pak | Vitality Pak by Melaleuca |
5.3 |
| 42 | Herbalife | Formula 2 Multivitamin Complex | Formula 2 Multivitamin Complex by Herbalife |
5.3 |
| 43 | QCI Nutritionals | Ultra Vitality #1 | Ultra Vitality #1 by QCI Nutritionals |
5.2 |
| 44 | KAL | Multiple Energy | Multiple Energy by KAL |
5.2 |
| 45 | Megafood | Essentials for Life | Essentials for Life by Megafood |
5.2 |
| 46 | Optimox | Androvite | Androvite by Optimox |
5.1 |
| 47 | Swanson Ultra | Whole Food Multi without Iron | Whole Food Multi without Iron by Swanson Ultra |
5.0 |
| 48 | Jarrow | Multi E-Z Powder | Multi E-Z Powder by Jarrow |
5.0 |
| 49 | Great Earth | TNT - Total Nutrition Tablet | TNT - Total Nutrition Tablet by Great Earth |
5.0 |
| 50 | Nikken | Kenzen Mega Daily 4 | Kenzen Mega Daily 4 by Nikken |
4.9 |
| 51 | Garry Null's | Supreme Health Formula | Supreme Health Formula by Garry Null's |
4.8 |
| 52 | Thorne Research | Al's Formula | Al's Formula by Thorne Research |
4.8 |
| 53 | Atkins | Basic #3 | Basic #3 by Atkins |
4.7 |
| 54 | Vitamin World | Daily 3 With Antioxidant Factors | Daily 3 With Antioxidant Factors by Vitamin World |
4.7 |
| 55 | PhytoPharmica | Clinical Nutrients | Clinical Nutrients by PhytoPharmica |
4.7 |
| 56 | Pfizer | Centrum | Centrum by Pfizer |
4.6 |
| 57 | 4Life | BioVitamins Type III | BioVitamins Type III by 4Life |
4.5 |
| 58 | Bronson Laboratories | Performance Edge | Performance Edge by Bronson Laboratories |
4.5 |
| 59 | One A Day | Essential | Essential by One A Day |
4.5 |
| 60 | Country Life | Maxine | Maxine by Country Life |
4.4 |
| 61 | Nature Made | Multi Complete | Multi Complete by Nature Made |
4.3 |
| 62 | Quest | Maximum Once A Day | Maximum Once A Day by Quest |
4.2 |
| 63 | Nature's Bounty | Green Source Vegetarian Formula | Green Source Vegetarian Formula by Nature's Bounty |
4.1 |
| 64 | Matol | Matolife | Matolife by Matol |
4.1 |
| 65 | Greens+ | Multi+ | Multi+ by Greens+ |
3.9 |
| 66 | Michael's Naturopathic Programs | Pedia Vites | Pedia Vites by Michael's Naturopathic Programs |
3.8 |
| 67 | Natrol | My Favorite Multiple Original | My Favorite Multiple Original by Natrol |
3.8 |
| 68 | Nu-life | Ultimate One | Ultimate One by Nu-life |
3.7 |
| 69 | Jamieson | Super Vita-Vim | Super Vita-Vim by Jamieson |
3.7 |
| 70 | Walgreens | Ultra Choice Premium | Ultra Choice Premium by Walgreens |
3.5 |
| 71 | Swiss Natural Sources | Super Adult Chewable | Super Adult Chewable by Swiss Natural Sources |
3.4 |
| 72 | Ripple Creek | Mega-100 (Slow Release) | Mega-100 (Slow Release) by Ripple Creek |
3.3 |
| 73 | Thompson | Human Nature Green Multi | Human Nature Green Multi by Thompson |
3.0 |
| 74 | Safeway Select | Super Multivitamin | Super Multivitamin by Safeway Select |
2.9 |
| 75 | Perfect Choice | Multivitamin Specially Formulated | Multivitamin Specially Formulated by Perfect Choice |
2.9 |
| 76 | Watkins | Superfood Multiple | Superfood Multiple by Watkins |
2.8 |
| 77 | Vitamin Power | Power Source 100 | Power Source 100 by Vitamin Power |
2.8 |
| 78 | Pilgrim's | Silver Stars Multi | Silver Stars Multi by Pilgrim's |
2.7 |
| 79 | Absolute Nutrition | Dieters' Multi's | Dieters' Multi's by Absolute Nutrition |
2.7 |
| 80 | Nature's Sunshine | Super Supplemental Vitamins and Minerals | Super Supplemental by Nature's Sunshine |
2.7 |
| 81 | Freeda Vitamins | Ultra Freeda Iron-Free | Ultra Freeda Iron-Free by Freeda Vitamins |
2.7 |
| 82 | ZonePerfect | Multi Vitamin & Mineral | Multi Vitamin & Mineral by ZonePerfect |
2.6 |
| 83 | Sisu | Only One | Only One by Sisu |
2.5 |
| 84 | Schiff | Single Day | Single Day by Schiff |
2.4 |
| 85 | Nature's Plus | Ultra One | Uitra One by Nature's Plus |
2.0 |
| 86 | Kirkland Signature (Costco) | Daily Multi | Daily Multi by Kirkland |
1.9 |
| 87 | Sunkist | Multi-Men's | Multi-Men's by Sunkist |
1.7 |
| 88 | Lifestyles | Lifecycles | Lifecycles by Lifestyles |
1.6 |
| 89 | Western Family | Multra Forte | Multra Forte by Western Family |
1.3 |
| 90 | Avon | VitAdvance Complete Multivitamin | VitAdvance Complete Multivitamin by Avon |
1.2 |
| 91 | Flora | MultiCaps | MultiCaps by Flora |
1.2 |
| 92 | Reliv | Classic | Classic by Reliv |
1.1 |
| 93 | Sundown | Complete Daily | Complete Daily by Sundown |
0.9 |
| 94 | YourLife | Super Multi with Herbs | Super Multi with Herbs by YourLife |
0.9 |
| 95 | Rite Aid | Whole Source | Whole Source by Rite Aid |
0.8 |
| 96 | 21st Century | One Daily Maximum | One Daily Maximum by 21st Century |
0.7 |
| 97 | Spring Valley | Ultra Multivitamin | Ultra Multivitamin by Spring Valley |
0.6 |
| 98 | Life Brand | Optimum | Optimum by Life Brand |
0.6 |
| 99 | Good Neighbor Pharmacy | Balanced Care Complete Multi | Balanced Care Complete Multi by Good Neighbor Pharmacy |
0.6 |
| 100 | Kroger | Advanced Formula Complete | Advanced Formula Complete by Kroger |
0.6 |
| 101 | Equate | One Daily | One Daily by Equat |
0.6 |
| 102 | Action Labs | Essential Nutrients | Essential Nutrients by Action Labs |
0.5 |
| 103 | Geritol | Complete | Complete by Geritol |
0.4 |
