ODS Reference Materials Search Tool
The National Institutes of Health (NIH) Office of Dietary Supplements (ODS) Reference Materials Search Tool (RMST) provides a platform to identify Reference Materials relevant to chemical analysis of dietary supplements, foods, and other natural products, including materials made available with support from the ODS Analytical Methods and Reference Materials Program.
Users can search for individual characteristics (e.g., specific botanicals or vitamins), as well as compare chemical constituents and composition across multiple related Reference Materials. The ODS website has a full listing of ODS AMRM-supported reference materials.
Example Result
Hover over or click the elements of the example result for descriptions.
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Similar Macronutrient Composition – Search for materials with compositions within a specified standard deviation from the mean for protein, fat, or carbohydrates.
Kelp Powder (Thallus laminariae)
NIST #: 3232(link is external)
3 pouches, 5 g of material each
Kelp
Laminaria sp.
Protein: 19.68%
Fat: 3.26%
Carbohydrates: 77.06%
Analyte | Value | Uncertainty | Unit | Certification |
Aluminum (Al)
| 1070 | 110 | mg/kg | Reference |
Calcium (Ca)
| 12260 | 680 | mg/kg | Certified |
Chlorine (Cl)
| 35600 | 1200 | mg/kg | Reference |
Cobalt (Co)
| 0.307 | 0.011 | mg/kg | Reference |
Copper (Cu)
| 3.875 | 0.087 | mg/kg | Certified |
Iodine (I)
| 944 | 88 | mg/kg | Certified |
Iron (Fe)
| 672 | 13 | mg/kg | Certified |
Magnesium (Mg)
| 6130 | 180 | mg/kg | Certified |
Manganese (Mn)
| 24.6 | 1.6 | mg/kg | Certified |
Molybdenum (Mo)
| 0.2441 | 0.0091 | mg/kg | Certified |
Phosphorus (P)
| 4551 | 51 | mg/kg | Reference |
Potassium (K)
| 76000 | 1100 | mg/kg | Certified |
Rubidium (Rb)
| 28.44 | 0.51 | mg/kg | Reference |
Sodium (Na)
| 16330 | 380 | mg/kg | Certified |
Zinc (Zn)
| 27.4 | 1.1 | mg/kg | Certified |
Analyte | Value | Uncertainty | Unit | Certification |
Ash
| 23.55 | 0.57 | g/100 g | Reference |
Calories
| 306.2 | 4 | kcal/100 g | Reference |
Carbohydrates
| 56.7 | 1 | g/100 g | Reference |
Fat
| 2.4 | 1.3 | g/100 g | Reference |
Protein
| 14.48 | 0.98 | g/100 g | Reference |
Analyte | Value | Uncertainty | Unit | Certification |
Arsenic (As)
| 38.3 | 1.3 | mg/kg | Certified |
Arsenosugar 328
| 1.20 | 0.14 | mg/kg | Reference |
Arsenosugar 392
| 14.06 | 0.72 | mg/kg | Reference |
Arsenosugar 482
| 5.59 | 0.51 | mg/kg | Reference |
Cadmium (Cd)
| 0.4259 | 0.0084 | mg/kg | Certified |
Chromium (Cr)
| 5.92 | 0.52 | mg/kg | Certified |
Lead (Pb)
| 1.032 | 0.039 | mg/kg | Certified |
Mercury (Hg)
| 0.1129 | 0.0032 | mg/kg | Certified |