Etiketter

Summa sidvisningar

Sidor

Leta i den här bloggen

tisdag 18 juni 2019

Orgaanisen fosforin ja epäorgaanisten fosfaattien pitoisuudesta ravinnossa. Vaikutus seerumin fosfaattiin.


2015 Aug;102(2):444-53. doi: 10.3945/ajcn.114.102715. Epub 2015 Jun 3. Association of dietary phosphate and serum phosphorus concentration by levels of kidney function.
Moore LW1, Nolte JV2, Gaber AO2, Suki WN3. Abstract BACKGROUND:
The health implications of dietary phosphorus intake and the role of kidney function in managing serum phosphorus homeostasis are well studied. However, examining the source of dietary phosphorus intake and its impact on serum phosphorus has not been characterized in population studies. OBJECTIVE:
This study aimed to distinguish the association of food sources of organic phosphorus and inorganic phosphate additives with serum phosphorus concentration.
 DESIGN:
A cross-sectional analysis of 24-h food recall data from 7895 adult participants in the National Health and Nutrition Examination Survey 2003-2006 was performed. Phosphorus content of foods was categorized as organic or inorganic. Correlations of serum phosphorus to clinical and dietary intake variables were achieved by using multiple regression analysis.
RESULTS:
After controlling for estimated glomerular filtration rate (eGFR), body mass index (BMI; in kg/m²), and albumin-to-creatinine ratio, a significant increase in serum phosphorus occurred with dairy foods with inorganic phosphates [parameter estimate (PE) ± SE: 0.07 ± 0.02 mg/dL, P < 0.01] or without inorganic phosphates (PE: 0.02 ± 0.01, P < 0.001) and cereals/grains with inorganic phosphates (PE: 0.005 ± 0.002, P < 0.01). Significantly higher serum phosphorus occurred when eGRF was <30 -0.09="" -0.10="" -0.11="" 0.0001="" 0.01="" 0.03="" 0.04="" 0.05="" 0.08="" 0.18="" 0.24="" 30-44="" 45-60="" and="" associated="" bmi="" but="" egfr="" higher="" lower="" or="" p="0.014). </p" phosphorus="" serum="" was="" were="" with="">CONCLUSIONS:
This analysis shows that dairy products and cereals/grains having inorganic phosphate additives significantly increase serum phosphorus concentration, despite being consumed less frequently than foods without phosphate additives. It seems prudent for the Nutrient Facts Label to include phosphorus but also for food manufacturers to consider alternatives to phosphate additives.
TRIAL REGISTRATION:
ClinicalTrials.gov NCT02435017.

KEYWORDS:
body mass index; chronic kidney disease; diet; dietary phosphorus; kidney disease
Comment in
  • Studying dietary phosphorus intake: the challenge of when a gram is not a gram. [Am J Clin Nutr. 2015]
    2017 Mar;27(2):97-105. doi: 10.1053/j.jrn.2016.08.009. Epub 2016 Oct 14.

    Replacing Phosphorus-Containing Food Additives With Foods Without Additives Reduces Phosphatemia in End-Stage Renal Disease Patients: A Randomized Clinical Trial.
    de Fornasari ML1, Dos Santos Sens YA2.AbstractOBJECTIVE:
    The purpose of the study was to verify the effects of replacing phosphorus-containing food additives with foods without additives on phosphatemia in end-stage renal disease (ESRD) patients. DESIGN:
    Randomized clinical trial.SETTING:
    Adult patients on hemodialysis for ≥6 months at a single center. SUBJECTS:
    A total of 134 patients with phosphorus levels of >5.5 mg/dL were included and were randomized into an intervention group (n = 67) and a control group (n = 67). INTERVENTION:
    The IG received individual orientation to replace processed foods that have phosphorus additives with foods of similar nutritional value without these additives. The CG received only the nutritional orientation given before the study. Clinical laboratory data, nutritional status, energy and protein intake, and normalized protein nitrogen appearance (nPNA) were evaluated at the beginning of the study and after 90 days. RESULTS:
    There was no initial difference between the groups in terms of serum phosphorus levels, nutritional status, and energy intake. After 3 months, there was a decline in phosphorus levels in the IG (from 7.2 ± 1.4 to 5.0 ± 1.3 mg/dL, P < .001), but there was no significant difference in the CG (from 7.1 ± 1.2 to 6.7 ± 1.2 mg/dL, P = .65). In the IG, 69.7% of the patients reached the serum phosphorus target of ≤5.5 mg/dL; however, only 18.5% of the CG subjects reached this level (P < .001). CONCLUSION: At the end, there was no difference between the two groups in terms of nutritional status, energy intake, protein intake, and nPNA. The replacing phosphorus-containing food additives with foods without additives reduced serum phosphorus without interfering in the nutritional status of ESRD patients.

Inga kommentarer: