In a message dated 12/26/2007 8:27:54 P.M. Eastern Standard Time,
[log in to unmask] writes:
The only way to meet
calcium needs in a typical Western diet, using non-fortified foods
alone, is to eat cow-milk products (or another animal-milk products).
Dear Friends:
I wonder about this. The US has a huge dairy industry, and I am
skeptical about any scientific findings that have a huge attachment to industry. One
can get calcium from dark green leafy vegetables, from tofu made with
calcium, and from canned fishes as well as from cow-based products and
calcium-supplemented orange juice (which I wonder about as it is a new product when
compared with naturally occurring sources and who knows what it really does).
Here's an interesting study from the Gambia:
Am J Clin Nutr. 2006 Oct;84(4):943 (Jarjou, Prentice et al)
Randomized, placebo-controlled, calcium supplementation study in pregnant
Gambian women: effects on breast-milk calcium concentrations and infant birth
weight, growth, and bone mineral accretion in the first year of life.
BACKGROUND: Growth and bone mineral accretion in Gambian infants are poorer
than those in Western populations. The calcium intake of Gambian women is
low, typically 300-400 mg Ca/d, and they have low breast-milk calcium
concentrations, which result in low calcium intakes for their breastfed infants. A low
maternal calcium supply in pregnancy may limit fetal mineral accretion and
breast-milk calcium concentrations and thereby affect infant growth and bone
mineral accretion. OBJECTIVE: We investigated the effects of calcium
supplementation in Gambian women during pregnancy on breast-milk calcium concentrations
and infant birth weight, growth, and bone mineral accretion. DESIGN: A
randomized, double-blind, placebo-controlled supplementation study was conducted
in 125 Gambian women who received 1500 mg Ca/d (as calcium carbonate) or
placebo from 20 wk of gestation until delivery. Infant birth weight and
gestational age were recorded. Breast milk was collected, and infant anthropometric and
bone measurements were performed at 2, 13, and 52 wk after delivery. Infant
bone mineral status was assessed by using single-photon absorptiometry of the
radius and whole-body dual-energy X-ray absorptiometry. RESULTS: Compliance
with the supplement was high. No significant differences were detected
between the groups in breast-milk calcium concentration, infant birth weight, or
growth or bone mineral status during the first year of life. A slower rate of
increase in infant whole-body bone mineral content and bone area was found in
the supplement group than in the placebo group (group x time interaction: P =
0.03 and 0.02, respectively). CONCLUSION: Calcium supplementation of
pregnant Gambian women had no significant benefit for breast-milk calcium
concentrations or infant birth weight, growth, or bone mineral status in the first year
of life.
warmly,
Nikki Lee RN, MS, IBCLC, CCE, CIMI
craniosacral therapy practitioner
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