Showing papers on "Mineral absorption published in 1992"
01 Jan 1992
TL;DR: The results of mineral absorption studies of fibre-rich diets in humans are, however, not consistent as discussed by the authors, and the specific characteristics of mineral metabolism introduce a number of methodological difficulties that might have contributed to the conflicting results, in several studies either the content of fibre and other interacting substances has not been adequately analysed or the methods used to study absorption and utilisation have not been sensitive enough to reveal any effects.
Abstract: Fibre and some of the associated substances have strong in vitro mineral binding or complexing capacities and hence fibre has been suspected of impairing mineral absorption. The results of mineral absorption studies of fibre-rich diets in humans are, however, not consistent. The specific characteristics of mineral metabolism introduce a number of methodological difficulties that might have contributed to the conflicting results. Furthermore, in several studies either the content of fibre and other interacting substances has not been adequately analysed or the methods used to study absorption and utilisation have not been sensitive enough to reveal any effects.
42 citations
TL;DR: A well-balanced diet seems essential to avoid deficient mineral status in young camels andCalcium, magnesium and phosphorus levels were improved during the supplementation period in protein-energy supplemented groups.
33 citations
Patent•
24 Jul 1992
TL;DR: A mineral absorption promoting agent containing oligouronic acid, e.g. oligogalacturonic acid or oligomannuronic acids degree of polymerization (n)=1 to 9! is described in this paper.
Abstract: A mineral absorption promoting agent containing oligouronic acid, e. g. oligogalacturonic acid or oligomannuronic acid degree of polymerization (n)=1 to 9! is described. Since this oligouronic acid polymerization degree (n)=1 to 9! forms a complex with mineral, it promotes absorption of minerals into living organisms by simply adding it to foods, drinks or pharmacentical compositions for oral use. Since the agent has no problem with safety, the agent is suitable for repeated eating, drinking or taking, and the agent is very effective.
18 citations
Patent•
25 Nov 1992
TL;DR: In this article, the authors proposed a composition consisting of a decomposition of polygamma-glutamic acid as a mineral and a mineral absorption promoter, which is usable for foods and drinks in all states including a drink state, gelatinous state, solid state, granular or powdery state.
Abstract: PURPOSE:To obtain a composition containing a mineral absorption promoter to facilitate absorption of mineral. CONSTITUTION:A composition comprises a decomposition of poly-gamma-glutamic acid as a mineral and a mineral absorption promoter. The composition is usable for foods and drinks in all states including a drink state, gelatinous state, solid state, granular or powdery state. The composition significantly promotes absorption of mineral.
10 citations
01 Jan 1992
TL;DR: The potential beneficial effects of an increased intake of dietary fiber have received growing attention as mentioned in this paper, however, it seems to us that, at best, there is no effect, and in some cases the effects are negative but never beneficial.
Abstract: The potential beneficial effects of an increased intake of dietary fiber have received growing attention. The purpose of the present review is to clarify dietary fiber-mineral interrelationships. This includes mineral binding factors associated with dietary fiber such as oxalates, tannins and phytates. To summarize, taking into account the controversial data concerning fiber effects on mineral utilization by humans, it seems to us that, at best, there is no effect. In some cases the effects are negative but never beneficial. Only magnesium intake could be ameliorated by the Mg-rich content of certain fiber-rich foods, since this cation is still absorbable in the large intestine in humans. Phytate normally present in fibrous foods is the primary cause of alteration of mineral metabolism, rather than the fiber itself. Phytic acid strongly binds Ca, Zn and many other cations. The other antinutrients relevant to mineral metabolism are oxalic acid acid (spinach) and tannins (tea and sorghum) which are known to depress Ca and Fe availability respectively. Dietary fiber itself (sum of lignin and the polysaccharides that are not digested by the endogenous secretions of the human gastrointestinal tract) does not exert any significant influence on mineral balances. There are possible exceptions which concern polysaccharides rich in uronic acids, such as low methoxylated pectins and alginates. These demonstrate major binding effects on minerals. High phytate intakes might be achieved with diets containing high levels of brans, whole breads and soya by-products. They might result in mineral metabolism disorders (including anemia, bone fragility...), especially when dietary mineral (Ca, Zn, Fe) contents are limiting. This may occur frequently with some usual Western diets. The recommendations for increasing dietary fiber intakes in Western Communities would not be expected to have any significant adverse effects on mineral absorption, provided that adequate intakes of protein and mineral in question are maintained. Special attention must be paid to dairy products (to provide Ca), meat products (to provide Zn and heminic Fe) and fruits (for ascorbic acid which facilitates Fe absorption). Even for extreme food habits such as for vegetarians, a certain adaptation might take place involving gut flora and large intestine absorption capacity. This may be achieved by some populations who traditionally consume high fiber foods. However, such an adaptation is still questionnable as far as Western food habits are concerned
8 citations
TL;DR: In this article, a modified cow milk formula with macronutrient and mineral compositions adapted to comply with most normal infant's requirements was studied in 9 male infants recovering from malnutrition in a closed nutritional recovery center.
Abstract: Cow's miik has excessive calcium and phosphorus content and deficient amounts of zinc and copper, relative to the needs of normal infants. Calcium, phosphorus, magnesium, zinc, and copper absorption with a new cow milk formula which macronutrient and mineral compositions were adapted to comply with most normal infant's requirements, were studied in 9 male infants recovering from malnutrition in a closed nutritional recovery center. Patient's age was 3 to 1 0 months and their weight/length ratio was > 85%. Each infant was fed for six days with unmodified powdered cow's milk diluted to 10%, with sucrose 5%, maltodextrin 1% and vegetable oil 1%added, and for another six days witn modified cow's milk diluted to 1 5% plus maltodextrin 2.5%. Metabolic balance was done in the last three days of each experimental period to every child. Modified milk had lower calcium, magnesium and phosphorus (20%) and higher, copper (60%) and zinc (25%) contents (%) than unmodified milk. Calcium absorption (%) was similar with both unmodified and modified milk [49.0 ± 14 .2%vs62 .5± 18.6%); absolute calcium absorption with modified milk complied with accepted infant's needs. Apparent phosphorus absorption (54.3 ± 6.7 with modified milk vs 86.8 ± 9.1 mg • kg d with unmodified milk) should be enough for normal bone mineralization. Net magnesium absorption for modified milk was significantly lower than that of unmodifed milk (3.5 ± 1.2 vs 0.1 + 2.2 mg • kg d; p < 0.001). Copper absorption was deficient with unmodified miik but it was sufficient under modified milk (95.4 + 13.3 jug kg • d). Both formulae met recommended zinc allowances. The modified milk formula seems to better meet mineral requirements of infants than unmodified powdered cow's milk.