Basic Preventive 1 (Plus Iron And Copper)
98/100
This product looks safe
- Niacin: 200mg is 5.7× the Tolerable Upper Intake Level (35mg)
- Manganese: 20mg is 1.8× the Tolerable Upper Intake Level (11mg)
- 68% of ingredients have research evidence
D
Label Compliance Grade
Product Label
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Safety Alerts
⚠️ Niacin: 200mg is 5.7× the Tolerable Upper Intake Level (35mg)
⚠️ Manganese: 20mg is 1.8× the Tolerable Upper Intake Level (11mg)
Label Data
6 Tablet(s)
Serving Size
30
Servings
Other Combinations
Product Type
68%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin A
25000 IU mg
(500% DV)
Vitamin C
1200 mg
(2000% DV)
100 IU
(25% DV)
✅ Within RDA (0.2× RDA of 0.015 mg)
📚 604 studies (Tier A: 16, B: 251)
400 IU
(1333% DV)
📊 17.9× RDA — above typical dose (UL: 1000 mg)
📚 177 studies (Tier A: 3, B: 90)
60 mcg
(75% DV)
✅ Within RDA (0.5× RDA of 0.12 mg)
📚 273 studies (Tier A: 9, B: 175)
100 mg
(6667% DV)
📊 83.3× RDA — above typical dose
📚 76 studies (Tier A: 0, B: 33)
50 mg
(2941% DV)
📊 38.5× RDA — above typical dose
📚 12 studies (Tier A: 0, B: 1)
200 mg
(1000% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 5.7× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
50 mg
(2500% DV)
📊 38.5× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
800 mcg
(200% DV)
✅ 2.0× RDA — within safe limits
📚 225 studies (Tier A: 10, B: 105)
100 mcg
(1667% DV)
📊 41.7× RDA — above typical dose
📚 138 studies (Tier A: 1, B: 44)
300 mcg
(100% DV)
📊 10.0× RDA — above typical dose
📚 26 studies (Tier A: 0, B: 11)
400 mg
(4000% DV)
📊 80.0× RDA — above typical dose
📚 1 studies — no high-quality reviews
Calcium
500 mg
(50% DV)
Iron
20 mg
(111% DV)
150 mcg
(100% DV)
✅ Within RDA (1.0× RDA of 0.15 mg)
📚 243 studies (Tier A: 4, B: 133)
500 mg
(125% DV)
📊 Market median: 4002.0mg (1 products)
📚 20 studies (Tier A: 0, B: 2)
20 mg
(133% DV)
✅ 1.8× RDA — within safe limits
📚 258 studies (Tier A: 6, B: 134)
200 mcg
(286% DV)
📊 3.6× RDA — above typical dose (UL: 0.4 mg)
📚 172 studies (Tier A: 0, B: 67)
2 mg
(100% DV)
✅ 2.2× RDA — within safe limits
📚 36 studies (Tier A: 0, B: 11)
20 mg
(1000% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.8× (UL: 11 mg)
📚 8 studies — no high-quality reviews
200 mcg
(167% DV)
📊 5.7× RDA — above typical dose
📚 197 studies (Tier A: 1, B: 55)
150 mcg
(200% DV)
📊 3.3× RDA — above typical dose (UL: 2 mg)
📚 2 studies — no high-quality reviews
99 mg
(2% DV)
📊 Market median: 4002.0mg (1 products)
📚 20 studies (Tier A: 0, B: 2)
150 mg
✅ Within RDA (0.3× RDA of 550 mg)
📚 36 studies (Tier A: 1, B: 7)
50 mg
📊 Market median: 550.0mg (217 products)
📚 29 studies (Tier A: 0, B: 5)
39 mcg
📊 Market median: 0.5mg (6 products)
📚 1 studies (Tier A: 0, B: 1)
2 mg
📊 Market median: 3.0mg (58 products)
📚 2 studies — no high-quality reviews
50 mg
📊 Market median: 500.0mg (9 products)
100 mg
📊 Market median: 500.0mg (283 products)
📚 173 studies (Tier A: 0, B: 62)
Raw Glandular Tissue Blend
180 mg
Other Ingredients
modified Cellulose Gum
Methylcellulose
Silica
Vegetable Stearine
Cellulose
Titanium Dioxide
Magnesium Stearate
Gum Ghatti
natural Tangerine flavor
Canthaxanthin
Label Claims — Verification
❓
Nutrient
❓
All Other
All Other (100% of products)
Structure/Function (75% of products)
Nutrient (48% of products)
Target Groups
Adult (18 - 50 Years)
Product Information
📋 Directions for Use
Suggested Usage: As a dietary supplement, adults take 6 tablets daily with food or as directed by your healthcare professional.
⚠️ Warnings & Precautions
WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under the age of 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
WARNING: This product contains Vitamin K, which intereferes with the prescription drugs Coumadin and Warfarin. Do not take this if taking either of these drugs.
KEEP OUT OF REACH OF CHILDREN.
Tamper resistant package, do not use if outer seal is missing.
🧪 Formulation Notes
Basic Preventive 1(R) (Plus Iron and Copper)
Additional Information
BP1
For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)
Product Details
UPC / SKU
7 45287 01001 3
DSLD Entry Date
2012-07-25
Product Type
Other Combinations
Form
Tablet or Pill
Brand
Douglas Laboratories
DSLD ID
10777
Data Updated
2026-04-11
Research Evidence
42
Research Sources
53
Avg Quality Score
20
Meta Analysis
10
Systematic Review
9
Rct
1
Observational
1
Regulatory Source
B
Trace Elements and Risk of Immune-Mediated Skin Disease: A Systematic Review and Meta-analysis
B
Blood Trace Element Status in Multiple Sclerosis: a Systematic Review and Meta-analysis
B
Essential Trace Element Status in Systemic Lupus Erythematosus: a Meta-analysis Based on Case-Control Studies
B
Association between serum copper/zinc ratio and lung cancer: A systematic review with meta-analysis
B
Vacuolated Marrow Cytopenias from Copper Deficiency to UBA1-Mutant VEXAS: Molecular Landscape, Systematic Review, and Cost-Efficient Diagnostic Algorithm
B
Copper Deficiency: A Frequently Overlooked Complication After MBS-A Systematic Review and Meta-analysis
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