TY - JOUR
T1 - Individual responses to a cholesterol-lowering diet in 50 men with moderate hypercholesterolemia
AU - Denke, Margo A.
AU - Grundy, Scott M
N1 - Funding Information:
Thisworkwas supported by the Department of Vet¬ eransAffairs;NationalInstitutesofHealthgrantsHL- 29252 and M01-RR-00633; grantPublic Health Service 5-MO1-RR00633;theSouthwesternMedicalFoundation; theMossHeartFoundation of Dallas; and National Insti¬ tutesofHealth-NationalHeart,Lung,andBloodInstitute Clinical InvestigatorAward N1H5-K08-HL02456 (Dr Denke). C. Calloway, RN,participatedin thedietarycoun¬ seling. toCenter HumanNutrition,Uni¬ Reprintrequests for versityofTexasSouthwesternMedicalCenter,5323Harry HinesBlvd,Dallas,TX75235-9052(DrDenke).
PY - 1994/2/14
Y1 - 1994/2/14
N2 - Background: Dietary modification is the recommended first step in the treatment of hypercholesterolemia. However, the efficacy of the National Cholesterol Education Program Step 1 Diet in outpatients with hypercholesterolemia has been debated. Methods: Fifty normotriglyceridemic men whose ad libitum low-density lipoprotein (LDL) cholesterol levels were 4.14 to 5.69 mmol/L (160 to 220 mg/dL) participated in a two-period outpatient diet counseling study that used a 1-month high fat, high-saturated fatty acid period (Hi-Sat) and a 4-month low-fat, low-saturated fatty acid period (Step 1 Diet). Lipid, lipoprotein levels, and plasma triglyceride fatty acids were measured five times during the last 2 weeks of each dietary period and averaged for each patient. Dietary intake was assessed by 7-day food records. During the Hi-Sat period, an LDL turnover study was done to determine the fractional catabolic rate of LDL. Results: The mean reduction in total and LDL cholesterol levels achieved by diet was 0.54 mmol/L (21 mg/dL) and 0.39 mmol/L (15 mg/dL), respectively. These responses equaled those predicted from metabolic ward investigations. While dietary responsiveness was normally distributed, there was marked individual variation in response. The mean (±SD) for quartiles of LDL responsiveness were +0.41 ±0.21 mmol/L (+16±8 mg/dL), -0.16±0.13 mmol/L (-6±5mg/dL), - 0.57±0.16 mmol/L (-22±6 mg/dL), and -1.16±0.26 mmol/L (-45±10 mg/dL). These differences in response were partially explained by dietary adherence, baseline fractional catabolic rates of LDL, and the change in plasma triglyceride palmitate level. Conclusions: The Step 1 Diet is effective in lowering LDL cholesterol levels for many hypercholesterolemic men, and with appropriate counseling, outpatients can achieve results predicted by inpatient metabolic diet studies. Nonetheless, the responsiveness for individuals is highly variable, and this variability is influenced by both compliance and biologic factors. Since many men achieved LDL cholesterol levels low enough to remove the need for drug therapy in primary prevention for coronary heart disease, dietary therapy should remain the initial approach to the treatment of hypercholesterolemia.
AB - Background: Dietary modification is the recommended first step in the treatment of hypercholesterolemia. However, the efficacy of the National Cholesterol Education Program Step 1 Diet in outpatients with hypercholesterolemia has been debated. Methods: Fifty normotriglyceridemic men whose ad libitum low-density lipoprotein (LDL) cholesterol levels were 4.14 to 5.69 mmol/L (160 to 220 mg/dL) participated in a two-period outpatient diet counseling study that used a 1-month high fat, high-saturated fatty acid period (Hi-Sat) and a 4-month low-fat, low-saturated fatty acid period (Step 1 Diet). Lipid, lipoprotein levels, and plasma triglyceride fatty acids were measured five times during the last 2 weeks of each dietary period and averaged for each patient. Dietary intake was assessed by 7-day food records. During the Hi-Sat period, an LDL turnover study was done to determine the fractional catabolic rate of LDL. Results: The mean reduction in total and LDL cholesterol levels achieved by diet was 0.54 mmol/L (21 mg/dL) and 0.39 mmol/L (15 mg/dL), respectively. These responses equaled those predicted from metabolic ward investigations. While dietary responsiveness was normally distributed, there was marked individual variation in response. The mean (±SD) for quartiles of LDL responsiveness were +0.41 ±0.21 mmol/L (+16±8 mg/dL), -0.16±0.13 mmol/L (-6±5mg/dL), - 0.57±0.16 mmol/L (-22±6 mg/dL), and -1.16±0.26 mmol/L (-45±10 mg/dL). These differences in response were partially explained by dietary adherence, baseline fractional catabolic rates of LDL, and the change in plasma triglyceride palmitate level. Conclusions: The Step 1 Diet is effective in lowering LDL cholesterol levels for many hypercholesterolemic men, and with appropriate counseling, outpatients can achieve results predicted by inpatient metabolic diet studies. Nonetheless, the responsiveness for individuals is highly variable, and this variability is influenced by both compliance and biologic factors. Since many men achieved LDL cholesterol levels low enough to remove the need for drug therapy in primary prevention for coronary heart disease, dietary therapy should remain the initial approach to the treatment of hypercholesterolemia.
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U2 - 10.1001/archinte.154.3.317
DO - 10.1001/archinte.154.3.317
M3 - Article
C2 - 8297199
AN - SCOPUS:0028157438
SN - 0003-9926
VL - 154
SP - 317
EP - 325
JO - Archives of Internal Medicine
JF - Archives of Internal Medicine
IS - 3
ER -