Nutrient Adequacy Assessment Using Food Consumption Surveys (1986) / Chapter Skim
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6. Assessing Excessive Intake and Nutrient Energy Ratios
6. Assessing Excessive Intake and Nutrient Energy Ratios
Pages 41-47
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From page 41... ...
FAT INTAKE Approaches to adjusting the distribution of observed intakes to estimate the distribution of usual intakes can be applied to fats, which are of concern because of a possible effect of high intakes on serum lipids and coronary heart disease. Through the use of such approaches, subgroups can be compared or trends examined over time.
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From page 42... ...
The some principles and approach can be used to analyze detrimentally high usual intakes of nutrients or food components. The risk of acute toxicity cannot be estimated in this fashion from survey dietary intake data.
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From page 43... ...
A point marking low risk is shown. Both this point and the recommended intake might be considered safe, i.e., intakes representing an acceptably o of ° 05 o 1.0- me_ RECOMMENDED NUTRI ENt \ t NTAKE —~ - SAFE RANGE Of INTAKE Observed ~1 of Intotc EXCESSIVE INTAKE -, - 0.5 o O FIGURE 6-1.
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From page 44... ...
On one hand, inadequate intake of fat or fatty acids can result in specific fatty acid deficiencies and too low an energy density in the diet. On the other hand, excess fat intake can produce detrimental effects on serum lipids and has been implicated in the development of atherosclerosis.
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From page 45... ...
These other applications of nutrient density ratios do not fall within the scope of the mandate assigned to the subcommittee. If it can be assumed that activity levels and anthropametric status are to remain constant, the distribution of usual energy intake is taken to describe approximately the distribution of energy requirements.
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From page 46... ...
For the nutrients, it is reasonable to assume that intake is determined to a very large extent by psychosocial factors affecting the selection of particular foods rather than by physiological factors. Studies in animal models indicate, however, that there are specific regulatory mechanisms for nutrient intake and provide limited evidence that these mechanisms continue to operate as an important factor in determining nutrient intake by free-living subjects.
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From page 47... ...
In the assessment of dietary adequacy, therefore, energy intake must be interpreted in a manner completely different from that used for nutrient intake data. For example, since activity is a major variable of energy expenditure, observed energy intake may be used as a descriptor of the usual expenditure levels and of status quo activity levels (Beaton, 1983)
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