Individual cholesterol variation in response to a margarine- or butter-based diet

A study in families

Margo A. Denke, Beverley Adams-Huet, Anh-Thuy T Nguyen

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Context: The effectiveness of dietary modification in reducing low-density lipoprotein cholesterol (LDL-C) levels can be reliably predicted for populations, but not for individuals. Objective: To determine whether individual variation in cholesterol response to dietary modification is a familial trait. Design: Two-period, outpatient crossover trial conducted from September 1997 to September 1999. Setting and Participants: Fifty-six families from the Dallas-Ft Worth, Tex, area with 2 biological parents and at least 2 children aged 5 years or older volunteered; 46 families (n =92 adults and n = 134 children) completed the study. Intervention All families followed two 5-week dietary regimens that included individualized daily dietary prescriptions and emphasized a low-saturated fat diet supplemented with specially manufactured baked goods and spreadable fat. One regimen used butter only and the other used margarine only. Main Outcome Measure: Mean LDL-C levels during the last 2 weeks of each dietary period. Results: Margarine intake compared with butter intake lowered LDL-C levels 11% in adults (95% confidence interval [CI], -13% to -9%) and 9% in children (95% CI, -12% to -6%) (P<.001 for both adults and children). The distribution of individual responses were peaked around the mean response. For adults and children together, family membership accounted for 19% of variability in response (P = .007). In children, family membership accounted for 40% of variability in response of percent change in LDL-C levels (P = .002). Body mass index and change in cholesterol ester (CE) 18: 2/18:1 ratio accounted for 26% of variation, leaving 26% still attributable to family membership. In all participants, BMI predicted response - heavier individuals had higher LDL-C levels, less excursion in CE fatty acids, and less LDL-C response to dietary change. Conclusions: Our results suggest that individual variation in response to a cholesterollowering diet is a familial trait. Body weight is an important modifiable factor that influences response.

Original languageEnglish (US)
Pages (from-to)2740-2747
Number of pages8
JournalJournal of the American Medical Association
Volume284
Issue number21
DOIs
StatePublished - Dec 6 2000

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Margarine
Butter
LDL Cholesterol
Cholesterol
Diet
Diet Therapy
Cholesterol Esters
Confidence Intervals
Fat-Restricted Diet
Cross-Over Studies
HDL Cholesterol
Prescriptions
Body Mass Index
Outpatients
Fatty Acids
Parents
Fats
Body Weight
Outcome Assessment (Health Care)
Population

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Individual cholesterol variation in response to a margarine- or butter-based diet : A study in families. / Denke, Margo A.; Adams-Huet, Beverley; Nguyen, Anh-Thuy T.

In: Journal of the American Medical Association, Vol. 284, No. 21, 06.12.2000, p. 2740-2747.

Research output: Contribution to journalArticle

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abstract = "Context: The effectiveness of dietary modification in reducing low-density lipoprotein cholesterol (LDL-C) levels can be reliably predicted for populations, but not for individuals. Objective: To determine whether individual variation in cholesterol response to dietary modification is a familial trait. Design: Two-period, outpatient crossover trial conducted from September 1997 to September 1999. Setting and Participants: Fifty-six families from the Dallas-Ft Worth, Tex, area with 2 biological parents and at least 2 children aged 5 years or older volunteered; 46 families (n =92 adults and n = 134 children) completed the study. Intervention All families followed two 5-week dietary regimens that included individualized daily dietary prescriptions and emphasized a low-saturated fat diet supplemented with specially manufactured baked goods and spreadable fat. One regimen used butter only and the other used margarine only. Main Outcome Measure: Mean LDL-C levels during the last 2 weeks of each dietary period. Results: Margarine intake compared with butter intake lowered LDL-C levels 11{\%} in adults (95{\%} confidence interval [CI], -13{\%} to -9{\%}) and 9{\%} in children (95{\%} CI, -12{\%} to -6{\%}) (P<.001 for both adults and children). The distribution of individual responses were peaked around the mean response. For adults and children together, family membership accounted for 19{\%} of variability in response (P = .007). In children, family membership accounted for 40{\%} of variability in response of percent change in LDL-C levels (P = .002). Body mass index and change in cholesterol ester (CE) 18: 2/18:1 ratio accounted for 26{\%} of variation, leaving 26{\%} still attributable to family membership. In all participants, BMI predicted response - heavier individuals had higher LDL-C levels, less excursion in CE fatty acids, and less LDL-C response to dietary change. Conclusions: Our results suggest that individual variation in response to a cholesterollowering diet is a familial trait. Body weight is an important modifiable factor that influences response.",
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