Determinants of supplement usage.

Area of Science:

• Nutritional Science
• Public Health
• Sociology of Health

Background:

• Growing consumer interest in supplements necessitates understanding usage drivers.
• Previous research often overlooks distinctions between specific vitamin and herbal supplement use.
• This study differentiates between various supplements and introduces a frequency measure for vitamin use.

Purpose of the Study:

• To investigate the demographic and behavioral determinants of vitamin and herbal supplement consumption.
• To analyze whether factors influencing supplement use vary across different types of supplements.
• To assess the impact of a vitamin use frequency measure on understanding usage patterns.

Main Methods:

• Utilized logistic and ordinal logistic regression analyses.
• Employed a large-scale dataset from the National Health Interview Survey (NHIS) 2000, comprising 24,834 participants.
• Examined supplement usage by breaking down broad categories into specific vitamins and herbs.

Main Results:

• Women and Non-Latino Whites demonstrated higher overall supplement usage compared to men, non-Latino Blacks, and Mexicans.
• Analysis indicated that determinants of use can differ based on the specific vitamin or herbal supplement.
• Incorporating a measure of frequency for vitamin use did not significantly alter the observed patterns.

Conclusions:

• Demographic trends in supplement use exist but are insufficient for a complete understanding.
• Further research is required to explore the specific reasons behind the use of particular supplements.
• Investigating the sources of information individuals rely on for supplement choices is crucial for public health initiatives.