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.

x Similar Macronutrient Composition – Search for materials with compositions within a specified standard deviation from the mean for protein, fat, or carbohydrates.

Protein: 19.68%	.5 1 1.5 2 2.5 3
Fat: 3.26%	.5 1 1.5 2 2.5 3
Carbohydrates: 77.06%	.5 1 1.5 2 2.5 3

Kelp Powder (Thallus laminariae) NIST #: 3232(link is external)
3 pouches, 5 g of material each
Kelp
Laminaria sp.

A representation on a visual triangle of compositional percentages for fat, carbohydrates, and protein, displayed for those materials with requisite value assignments

Protein: 19.68% Fat: 3.26% Carbohydrates: 77.06%

• Elements
• Organic Acids
• Proximates
• Toxic Elements
• Vitamins

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
Dimethylarsinic acid	0.479	0.077	mg/kg	Reference

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

Analyte	Value	Uncertainty	Unit	Certification
cis-Vitamin K1	0.0353	0.0067	mg/kg	Reference
trans-Vitamin K1	0.396	0.075	mg/kg	Reference
Vitamin K1	0.431	0.081	mg/kg	Reference

Source: NIST(link is external) 10/07/2022