Comparison
Carbo-SYN and Basic Preventive 2 (Iron and Copper Free)
Carbo-SYN (Douglas Laboratories) lists 34 distinct ingredients and Basic Preventive 2 (Iron and Copper Free) (Douglas Laboratories) 32 (rows of one ingredient counted once); 25 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.54.
| Ingredient | Carbo-SYN | Basic Preventive 2 (Iron and Copper Free) |
|---|---|---|
| Vitamin C | 300 mg (333%) | 1,200 mg (1333%) |
| Calcium | 100 mg (8%) | 500 mg (38%) |
| Vitamin B6 | 10 mg (588%) | 50 mg (2941%) |
| Magnesium | 200 mg (48%) | 500 mg (119%) |
| Vitamin B12 | 10 mcg (417%) | 100 mcg (4167%) |
| Zinc | 10 mg (91%) | 20 mg (182%) |
| Niacin | 200 mg (1250%) | 200 mg (1250%) |
| Vitamin E | 30 IU | 268 mg (1787%) |
| Potassium | 25 mg (under 1%) | 99 mg (2%) |
| Folate | 20 mcg | 1,333 mcg DFE (333%) |
| Vitamin A | 1,000 IU | 7.5 mg |
| Pantothenic Acid (Vitamin B5) | 50 mg (1000%) | 400 mg (8000%) |
| Riboflavin | 5 mg (385%) | 50 mg (3846%) |
| Thiamin | 10 mg (833%) | 100 mg (8333%) |
| Chromium | 400 mcg (1143%) | 200 mcg (571%) |
| Selenium | 10 mcg (18%) | 200 mcg (364%) |
| Manganese | 5 mg (217%) | 20 mg (870%) |
| Iodine | 20 mcg (13%) | 150 mcg (100%) |
| Molybdenum | 10 mcg (22%) | 150 mcg (333%) |
| Flavonoid | 100 mg | 100 mg |
| Vanadium | 10 mcg | 39 mcg |
| Liver | not disclosed | 51 mg |
| Adrenals | 80 mg | 27 mg |
| Thymus | not disclosed | 51 mg |
| Spleen | not disclosed | 51 mg |
| Vitamin D | 2.5 mcg (13%) | |
| Biotin | 300 mcg (1000%) | |
| Copper | 2 mg (222%) | |
| Choline | 60 mg (11%) | |
| Vitamin K | 60 mcg (50%) | |
| Inositol | 50 mg | |
| Boron | 2 mg | |
| Proteolytic Enzymes (Proteases) | 12,500 USP Unit(s) | |
| Lipase | 1,000 USP Unit(s) | |
| Amylase | 12,500 USP Unit(s) | |
| PABA | 50 mg | |
| Rutin | 5 mg | |
| Lecithin | 500 mg | |
| Kidney | not disclosed | |
| Pancreas | 50 mg | |
| Lactalbumin | 0.25 g |
Amounts are per serving as DSLD gives them: Carbo-SYN, 4 capsules; Basic Preventive 2 (Iron and Copper Free), 6 tablets. Current labels entered April 2012 and August 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Carbo-SYNDouglas Laboratories: every row against all products listing it
- Basic Preventive 2 (Iron and Copper Free)Douglas Laboratories: every row against all products listing it