|
1
|
Dietary supplement use in the United States, 2003-2006.
|
J Nutr
|
2010
|
4.72
|
|
2
|
The caffeine contents of dietary supplements commonly purchased in the US: analysis of 53 products with caffeine-containing ingredients.
|
Anal Bioanal Chem
|
2007
|
1.86
|
|
3
|
Measuring vitamins and minerals in dietary supplements for nutrition studies in the USA.
|
Anal Bioanal Chem
|
2007
|
1.57
|
|
4
|
Drug interactions with herbal products and grapefruit juice: a conference report.
|
Clin Pharmacol Ther
|
2004
|
1.51
|
|
5
|
Effect of increasing doses of saw palmetto extract on lower urinary tract symptoms: a randomized trial.
|
JAMA
|
2011
|
1.46
|
|
6
|
Unmetabolized serum folic acid and its relation to folic acid intake from diet and supplements in a nationally representative sample of adults aged > or =60 y in the United States.
|
Am J Clin Nutr
|
2010
|
1.32
|
|
7
|
Dietary supplement ingredient database (DSID): Preliminary USDA studies on the composition of adult multivitamin/mineral supplements.
|
J Food Compost Anal
|
2008
|
1.28
|
|
8
|
Development and certification of a standard reference material for vitamin D metabolites in human serum.
|
Anal Chem
|
2011
|
1.26
|
|
9
|
Development of the analytical methods and reference materials program for dietary supplements at the National Institutes of Health.
|
J AOAC Int
|
2004
|
1.14
|
|
10
|
Summary of an NIH workshop to identify research needs to improve the monitoring of iodine status in the United States and to inform the DRI.
|
J Nutr
|
2012
|
1.02
|
|
11
|
Nanotechnology research: applications in nutritional sciences.
|
J Nutr
|
2009
|
0.92
|
|
12
|
Detection of high levels of pyrrolizidine-N-oxides in the endangered plant Cryptantha crassipes (Terlingua Creek cat's-eye) using HPLC-ESI-MS.
|
Phytochem Anal
|
2011
|
0.91
|
|
13
|
Development of saw palmetto (Serenoa repens) fruit and extract standard reference materials.
|
Anal Bioanal Chem
|
2008
|
0.89
|
|
14
|
Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001-2002.
|
Food Nutr Res
|
2012
|
0.86
|
|
15
|
Sampling and analytical variability associated with the determination of total aflatoxins and ochratoxin A in powdered ginger sold as a dietary supplement in capsules.
|
J Agric Food Chem
|
2009
|
0.86
|
|
16
|
Dehydropyrrolizidine alkaloids, including monoesters with an unusual esterifying acid, from cultivated Crotalaria juncea (Sunn Hemp cv.'Tropic Sun').
|
J Agric Food Chem
|
2012
|
0.84
|
|
17
|
Use of multitoxin immunoaffinity columns for determination of aflatoxins and ochratoxin A in ginseng and ginger.
|
J AOAC Int
|
2007
|
0.84
|
|
18
|
Determination of aflatoxins B1, B2, G1, and G2 and ochratoxin A in ginseng and ginger by multitoxin immunoaffinity column cleanup and liquid chromatographic quantitation: collaborative study.
|
J AOAC Int
|
2008
|
0.83
|
|
19
|
Evaluation of commercial kava extracts and kavalactone standards for mutagenicity and toxicity using the mammalian cell gene mutation assay in L5178Y mouse lymphoma cells.
|
Food Chem Toxicol
|
2007
|
0.82
|
|
20
|
Characterization of a suite of ginkgo-containing standard reference materials.
|
Anal Bioanal Chem
|
2007
|
0.81
|
|
21
|
Variability in vitamin D content among products for multivitamin and mineral supplements.
|
JAMA Intern Med
|
2013
|
0.81
|
|
22
|
Determination of synephrine in bitter orange raw materials, extracts, and dietary supplements by liquid chromatography with ultraviolet detection: single-laboratory validation.
|
J AOAC Int
|
2007
|
0.79
|
|
23
|
Dehydropyrrolizidine alkaloids in two Cryptantha species: including two new open chain diesters one of which is amphoteric.
|
Phytochem Anal
|
2012
|
0.78
|
|
24
|
More on iodine content of prenatal vitamins.
|
N Engl J Med
|
2009
|
0.78
|
|
25
|
Development of botanical and fish oil standard reference materials for fatty acids.
|
Anal Bioanal Chem
|
2013
|
0.78
|
|
26
|
Determination of major phenolic compounds in Echinacea spp. raw materials and finished products by high-performance liquid chromatography with ultraviolet detection: single-laboratory validation matrix extension.
|
J AOAC Int
|
2011
|
0.78
|
|
27
|
Dietary supplement laboratory quality assurance program: the first five exercises.
|
J AOAC Int
|
2011
|
0.78
|
|
28
|
Optimization and single-laboratory validation study of a high-performance liquid chromatography (HPLC) method for the determination of phenolic Echinacea constituents.
|
Anal Bioanal Chem
|
2010
|
0.78
|
|
29
|
Semi-automated separation of the epimeric dehydropyrrolizidine alkaloids lycopsamine and intermedine: preparation of their N-oxides and NMR comparison with diastereoisomeric rinderine and echinatine.
|
Phytochem Anal
|
2014
|
0.77
|
|
30
|
Preparation and characterization of a suite of ephedra-containing standard reference materials.
|
J AOAC Int
|
2007
|
0.77
|
|
31
|
Electrophoretic separation of alginic sodium diester and sodium hexametaphosphate in chondroitin sulfate that interfere with the cetylpyridinium chloride titration assay.
|
J AOAC Int
|
2015
|
0.76
|
|
32
|
A free new dietary supplement label database for registered dietitian nutritionists.
|
J Acad Nutr Diet
|
2014
|
0.76
|
|
33
|
Profiling of dehydropyrrolizidine alkaloids and their N-oxides in herbarium-preserved specimens of amsinckia species using HPLC-esi(+)MS.
|
J Agric Food Chem
|
2014
|
0.75
|
|
34
|
Monacolin levels in red yeast rice: methodological questions.
|
Arch Intern Med
|
2011
|
0.75
|
|
35
|
Certification of elements in and use of standard reference material 3280 multivitamin/multielement tablets.
|
J AOAC Int
|
2014
|
0.75
|
|
36
|
AOAC SMPR(®) 2016.003.
|
J AOAC Int
|
2016
|
0.75
|
|
37
|
AOAC SMPR 2015.014.
|
J AOAC Int
|
2016
|
0.75
|
|
38
|
Standard reference materials for dietary supplement analysis.
|
Anal Bioanal Chem
|
2013
|
0.75
|
|
39
|
AOAC SMPR 2015.016.
|
J AOAC Int
|
2016
|
0.75
|
|
40
|
AOAC SMPR(®) 2016.004.
|
J AOAC Int
|
2016
|
0.75
|
|
41
|
Role of accurate methodology in demonstrating the safety and efficacy of phytoestrogens.
|
J AOAC Int
|
2006
|
0.75
|
|
42
|
AOAC SMPR(®) 2016.005.
|
J AOAC Int
|
2016
|
0.75
|