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Overrestriction of dietary fat intake before formal nutritional counseling in children with hyperlipidemia
A Kaistha1, R J Deckelbaum, T J Starc
1Department of Pediatrics, Columbia-Presbyterian Medical Center, PH 15E, 630 W 168th St, New York, NY 10032, USA.
Insights
Children with hyperlipidemia on unsupervised low-fat diets had significantly lower fat intake. Nutritional adequacy was maintained, suggesting overzealous restriction before formal counseling.
Area of Science:
- Pediatric Nutrition
- Cardiovascular Health
- Dietary Studies
Background:
- Hyperlipidemia in children requires dietary management.
- Unsupervised dietary changes may pose risks.
- Assessing nutritional adequacy of self-imposed diets is crucial.
Purpose of the Study:
- To compare nutritional intake in children with hyperlipidemia on self-directed low-fat diets versus healthy children on unrestricted diets.
- To evaluate the nutritional adequacy of these diets.
Main Methods:
- A case comparison study involving 46 children with hyperlipidemia and 34 healthy controls.
- Three-day food records analyzed using the Minnesota Nutrient Data System.
- Measured intake of calories, macronutrients, essential fatty acids, vitamins, and minerals.
Main Results:
- Hyperlipidemic children had significantly lower total fat (22.7% vs 34.5%) and saturated fat (7.9% vs 12.9%) intake.
- Caloric intake was 17% lower in the hyperlipidemic group, primarily due to reduced fat.
- No significant differences in vitamin and mineral intake were found after adjusting for calories.
Conclusions:
- Children with hyperlipidemia may excessively restrict dietary fat before formal nutritional guidance.
- Self-imposed low-fat diets can be nutritionally adequate in terms of micronutrients.
- Careful monitoring is needed to prevent overly restrictive diets.
Objective:
To assess the nutritional adequacy of the diets of children with hyperlipidemia following medically unsupervised low-fat diets compared with children receiving unrestricted diets.
Design:
Case comparison study.
Patients And Other Participants:
Forty-six children were referred to the Children's Cardiovascular Health Center, Columbia-Presbyterian Medical Center, New York, NY, for treatment of hyperlipidemia who had achieved the Step I diet recommendations for total fat before formal nutritional counseling (mean age +/- SE, 9.7 +/- 0.3 years; sex distribution, 24 boys [53%]; ethnicity, 26 Latinos [57%] and 20 whites [43 %]; body mass index +/- SE, 22.4 +/- 0.7 kg/m(2)), and 34 healthy children participating in well-child visits at a local pediatric practice (mean age +/- SE, 10.2 +/- 0.4 years; sex distribution, 18 boys [54%]; ethnicity, 19 Latinos [57%] and 15 whites [43%]; body mass index +/- SE, 22.5 +/- 1.1 kg/m(2)).
Main Outcome Measures:
Three-day food records were analyzed by a registered dietitian using the Minnesota Nutrient Data System. Outcome measures were intakes of calories, total and saturated fats, carbohydrate, protein, essential fatty acids, fat-soluble vitamins, folate, vitamin C, calcium, iron, and zinc.
Results:
The percentage of calories from fat and saturated fat was significantly lower in the hyperlipidemic population (mean +/- SE, hyperlipidemic vs control subjects: total fat, 22.7% +/- 0.7% vs 34.5% +/- 0.6%, P<.001; saturated fat, 7.9% +/- 0.3% vs 12.9% +/- 0.4%, P<.001). The caloric intake in controls was 17% higher than in patients with hyperlipidemia. Ninety percent of the decrease in calories in the hyperlipidemic group could be accounted for by the decrease in total fat intake. After adjusting for calories, no significant difference was noted between the groups for any of the vitamins and minerals mentioned earlier.
Conclusion:
Our findings suggest that before formal nutritional counseling, overzealous dietary fat restriction can occur in children with hypercholesterolemia.
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