Doch, doch, doch!
Hi!
Wenn Du mir nicht glaubst, vielleicht glaubst Du folgenden Leuten (Punkt 2. bezieht sich auf meine Behauptung, dass Mineralwasser ein Calcium-Lieferant ist, der Milch in nichts nachsteht; 1. ist IMHO für Osteoporose-Betroffene sehr interessant).
Damit ich hier nicht falsch verstanden werde: wer Milchprodukte zu sich nehmen kann, der sollte das auch tun.
Und zu den Rauchern und Bewegungsmuffeln: die sollen in erster Linie aufhören zu rauchen und anfangen sich zu bewegen. Ansonsten können sie ein Desaster wie mit Vitamin A erleben.
Gruß,
Oliver
1: Am J Clin Nutr. 2003 Feb;77(2):504-11.
Calcium, vitamin D, milk consumption, and hip fractures: a prospective study
among postmenopausal women.
Feskanich D, Willett WC, Colditz GA.
Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and
Harvard Medical School, Boston, MA 02115, USA.
diane.feskanich@channing.harvard.edu
BACKGROUND: Short trials of calcium supplementation show that it reduces loss of
bone density in postmenopausal women; longer observational studies do not
generally find a lower risk of hip fracture with higher-calcium diets. Fewer
studies have focused on vitamin D in preventing postmenopausal osteoporosis or
fractures. OBJECTIVE: We assessed relations between postmenopausal hip fracture
risk and calcium, vitamin D, and milk consumption. DESIGN: In an 18-y
prospective analysis in 72 337 postmenopausal women, dietary intake and
nutritional supplement use were assessed at baseline in 1980 and updated several
times during follow-up. We identified 603 incident hip fractures resulting from
low or moderate trauma. Relative risks (RRs) from proportional hazards models
were controlled for other dietary and nondietary factors. RESULTS: Women
consuming > or = 12.5 microg vitamin D/d from food plus supplements had a 37%
lower risk of hip fracture (RR = 0.63; 95% CI: 0.42, 0.94) than did women
consuming < 3.5 microg/d. Total calcium intake was not associated with hip
fracture risk (RR = 0.96; 95% CI: 0.68, 1.34 for > or = 1200 compared with < 600
mg/d). Milk consumption was also not associated with a lower risk of hip
fracture (P for trend = 0.21). CONCLUSIONS: An adequate vitamin D intake is
associated with a lower risk of osteoporotic hip fractures in postmenopausal
women. Neither milk nor a high-calcium diet appears to reduce risk. Because
women commonly consume less than the recommended intake of vitamin D, supplement
use or dark fish consumption may be prudent.
2: Am J Prev Med. 1991 Nov-Dec;7(6):379-83.
Comparative uptake of calcium from milk and a calcium-rich mineral water in
lactose intolerant adults: implications for treatment of osteoporosis.
Halpern GM, Van de Water J, Delabroise AM, Keen CL, Gershwin ME.
Department of Internal Medicine, School of Medicine, University of California,
Davis.
Despite the links between low calcium (Ca) intake and age-related bone loss,
hypertension, and colon cancer, the majority of Western populations have average
daily Ca intakes substantially below recommended daily allowances. Although
dietary products are widely known as a rich and valuable source of Ca in the
diet, consumption of diary products is low and has been decreasing because of
perceptions of excess calories and fat in the diet, as well as taste aversions.
During the last decade, a marked increase in the consumption of bottled waters
has occurred. Since some of these waters are characterized by high
concentrations of Ca, we have studied Ca bioavailability from a Ca-rich water,
using 15 lactose intolerant male individuals as subjects, and compared such
bioavailability to that from milk. We report herein that the bioavailability of
Ca from the water was generally as good as or better than that from milk, a food
product well known for its very high Ca bioavailability. Indeed, in eight of 15
subjects, there was a higher level of Ca absorption from mineral water than from
milk; bioavailability was equal in five of 15 subjects; in contrast, in two of
15 subjects, the bioavailability of Ca absorption from milk was greater than
that from the mineral water. The potential implications of this observation for
the prevention and management of age-related bone loss are important for
preventive medicine and indicate a new, important source of dietary Ca for
lactose intolerant individuals.
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