Food pyramid published by the WHO and FAO
The World Health Organization, in conjunction with the Food and Agriculture Organization, published guidelines that can be effectively represented in a food pyramid relating to objectives in order to prevent obesity, improper nutrition, chronic diseases and dental caries based on meta-analysis though they represent it as a table rather than as a "pyramid". The structure is similar in some respects to the USDA food pyramid, but there are clear distinctions between types of fats, and a more dramatic distinction where carbohydrates are categorized on the basis of free sugars versus sugars in their natural form. Some food substances are singled out due to the impact on the target issues that the "pyramid" is meant to address. In a later revision, however, some recommendations are omitted as they automatically follow other recommendations while other sub-categories are added. The reports quoted here explain that where there is no stated lower limit in the table below, there is no requirement for that nutrient in the diet.
Dietary factor | 1989 WHO Study Group recommendations | 2002 Joint WHO/FAO Expert Consultation recommendations |
---|---|---|
Total fat | 15–30% | 15–30% |
Saturated fatty acids (SFAs) | 0–10% | <10% |
Polyunsaturated fatty acids (PUFAs) | 3–7% | 6–10% |
n-6 PUFAs | 5–8% | |
n-3 PUFAs | 1–2% | |
Trans fatty acids | <1% | |
Monounsaturated fatty acids (MUFAs) | By difference | |
Total carbohydrate | 55–75% | 55–75% |
Free sugars | 0–10% | <10% |
Complex carbohydrate | 50–70% | No recommendation |
Protein | 10–15% | 10–15% |
Cholesterol | 0–300 mg/day | < 300 mg/day |
Sodium chloride (Sodium) | < 6 g/day | < 5 g/day (< 2 g/day) |
Fruits and vegetables | ≥ 400 g/day | ≥ 400 g/day |
Pulses, nuts and seeds | ≥ 30 g/day (as part of the 400 g of fruit and vegetables) | |
Total dietary fiber | 27–40 g/day | From foods |
NSP | 16–24 g/day | From foods |
All percentages are percentages of calories, not of weight or volume. To understand why, consider the determination of an amount of "10% free sugar" to include in a day's worth of calories. For the same amount of calories, free sugars take up less volume and weight, being refined and extracted from the competing carbohydrates in their natural form. In a similar manner, all the items are in competition for various categories of calories.
The representation as a pyramid is not precise, and involves variations due to the alternative percentages of different elements, but the main sections can be represented.
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