Peter Hendrix

Actual daily dietary intake of selenium in Belgium, using duplicate portion sampling

ZusammenfassungDie Selen-Aufnahme durch die Nahrung in Belgien wurde neu bestimmt. Als Technik diente die doppelte Probenahme von Mahlzeiten, deren nasser Aufschluß und die Fließ-Injektions AAS mit Hydridgeneration. Die tägliche Aufnahme schwankt zwischen 28,4 und 61, 1 μg. Im Vergleich zu Daten, die neuerdings aus anderen Ländern publiziert wurden, liegen die derzeitigen Werte aus Belgien im Mittelbereich.AbstractThe dietary selenium (Se) intake in Belgium has been re-evaluated. Duplicate meal collection, wet acid destruction and flow injection hydride generation atomic absorption spectrometry were used as techniques. The daily intake ranged from 28.4 μg (Liège, Walloon part of the country) to 61.1 μg (Vilvoorde, central part of the country). Compared with intakes recently published for other countries, the actual Belgian value corresponds to intermediate ranges of Se intake.

Daily dietary chromium intake in Belgium, using duplicate portion sampling

Daily dietary chromium intake in Belgium has been evaluated by sampling duplicate portions of food, heating them at an acidic pH in a microwave oven and then quantifying the chromium by atomic absorption spectrometry. The mean intake value (53±31 μg/day) is similar to levels found for most other countries and is situated at the lower end of the recommended range for a safe and adequate daily dietary intake.

Measurement of the daily dietary calcium and magnesium intake in Belgium, using duplicate portion sampling.

The daily dietary calcium and magnesium intakes in Belgium were evaluated by sampling duplicate portions of food, destruction in a microwave oven and their calcium and magnesium contents determined by atomic absorption spectroscopy. The mean intake value for calcium (618±125 mg/day) was found to be less than those values measured in most other countries and was below the recommended daily allowance (RDA). The mean intake value for magnesium (271±44 mg/day) was similar to levels found in most other countries, but was below the RDA value for healthy adult men (350 mg/day) whilst being adequate for healthy women (280 mg/day).

Daily dietary manganese intake in Belgium, using duplicate portion sampling.

ZusammenfassungDie tägliche Aufnahme von Mangan mit der Nahrung in Belgien wurde durch doppelte Probenahme von Portionen, Aufschluß derselben im Mikrowellen-Ofen und Atomapsorptionsspektrophotometrie bestimmt. Die mittlere Aufnahme lag bei 3.1±1.1 mg je Tag. Das entspricht Werten, wie sie in anderen Ländern gefunden wurden und liegt in den von WHO/RDA und NRC, USA empfohlenen Bereichen.AbstractDaily dietary manganese intake in Belgium was evaluated by duplicate portion sampling, destruction by cooking in a microwave oven and subsequent analysis for this element by atomic absorption spectrometry. The mean intake value (3.1±1.1 mg/day) is similar to levels found for most other countries and is within WHO/RDA and National Research Council, USA recommended intake ranges.

Daily dietary copper intake in Belgium, using duplicate portion sampling

ZusammenfassungDie tägliche Kupfer-Aufnahme mit der Nahrung in Belgien wurde durch doppelte Probenahme, Aufschluß im Mikrowellenofen und Atomabsorptionsspektrophotometrie bestimmt. Die mittlere Aufnahme war 1,5±0,4 mg je Tag. Sie ist vergleichbar zu anderen Ländern, liegt aber im unteren Bereich der Ernährungsempfehlungen.AbstractDaily dietary copper intake in Belgium has been evaluated by duplicate portion sampling, heating in a microwave oven and atomic absorption spectrometric determination of this element. The mean intake value (1.5±0.4 mg/day) is similar to levels found for most other countries, but is situated at the lower end of the recommended range for a safe and adequate daily dietary intake.