Protein intake trends and conformance with the Dietary Reference Intakes in the United States

Protein intake trends and conformance with the Dietary Reference Intakes in the United States: analysis of the National Health and Nutrition Examination Survey, 2001–2014

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN76534484

Enrollment

57980

Registered

2018-01-10

Start date

2001-01-01

Completion date

Unknown

Last updated

2018-07-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Protein intake Nutritional, Metabolic, Endocrine

Interventions

Data were extracted from a preexisting public database – a nationally representative survey of the US population, NHANES. NHANES is a large ongoing dietary survey of a nationally representative sample

http://cdc.gov/NCHS/nhanes.htm) every 2 years. All data used have previously been collected. The database is accessible to the public (National Health and Nutrition Examination Survey

http://cdc.gov/NCHS/nhanes.htm) and does not contain any personal identifiers. Standard statistical methods for analysis of weighted population NHANES datasets were employed, including multiple regres

2+ y) were calculated as absolute (g/d), relative (g/kg ideal body weight/d) intakes, and as a percentage of total energy. Sex, race and ethnicity (Asian, Hispanic, non-Hispanic Black, and non-Hispani

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: All data to be used have previously been collected and are part of an existing national public database (NHANES) accessible to the public through the Centers for Disease Control website on the World Wide Web (National Health and Nutrition Examination Survey; http://cdc.gov/NCHS/nhanes.htm). This data does not contain any personal identifiers. Individuals aged 2+ years, excluding pregnant and lactating women and fasted individuals, will be included in the analysis.

Exclusion criteria

Exclusion criteria: 1. Less than 2 years old 2. Pregnant or lactating 3. Fasted

Design outcomes

Primary

Measure	Time frame
Protein intake trends over the past 14 years (2001-2014) in the US civilian population, extracted from the National Health and Nutrition Examination Survey	—

Secondary

Measure	Time frame
Recent (2011-2014) conformance with protein-specific DRIs according to age, sex, and race and ethnicity in the US civilian population, extracted from the National Health and Nutrition Examination Survey	—

Countries

United States of America

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 6, 2026