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Pastimes : Don't Ask Rambi -- Ignore unavailable to you. Want to Upgrade?

To: jbe who wrote (27363)	6/3/1999 9:50:00 PM
From: Ilaine	Read Replies (1) \| Respond to of 71178

Unfortunately, Joan, you have fallen into the hands of the enemy, professional nutritionists, a potentially lethal mistake. Allow me to enlighten you. Only spinach, and maybe swiss chard, are high enough in oxalates to potentially interfere with assimilation of the minerals, and that's not even proven. I recall reading recently that actually spinach has a bad rap. But parsley, turnip greens, mustard greens, collard greens, kale, all are quite high in assimilable iron.

To: jbe who wrote (27363)	6/3/1999 10:01:00 PM
From: Ilaine	Read Replies (1) \| Respond to of 71178

I know how hard-headed you are, so here is one source: Proc Soc Exp Biol Med 1992 Jun;200(2):157-60 Calcium bioavailability and its relation to osteoporosis. Weaver CM Department of Foods and Nutrition, Purdue University, West Lafayette, Indiana 47907. The balance of data suggests that calcium intake has a positive influence on bone mass in premenopausal women and has a preventive effect on the rate of bone loss in postmenopausal women. Even small advantages in bone mass provide great reductions in fracture rates. However, the majority of studies have tested the relationship of calcium intake and bone mass using calcium supplements. Few intervention studies have manipulated calcium intake through foods. Calcium is only useful to the skeleton once it is absorbed. Therefore, the bioavailability of dietary calcium becomes important in the prevention and treatment of osteoporosis. Isotopic tracer techniques have only recently been employed in the labeling of foods with calcium isotopes for evaluation of calcium absorption. Milk calcium is usually the referent food which is typically absorbed at 20-40% depending on the calcium status of the subject. The absorptive efficiency of most vegetable sources is as good or better than for dairy foods, unless they have high concentrations of oxalic acid (spinach, for example) or phytic acid (wheat bran cereal, for example). Few vegetable sources are concentrated sources of calcium. Therefore, it would be difficult to obtain adequate intakes of calcium to protect against osteoporosis without liberal use of dairy products in the diet. Alternately, calcium supplements provide concentrated amounts of absorbable calcium, but they do not provide other nutrients necessary for skeletal growth and maintenance. PMID: 1579576, UI: 92253569 -------------------------------------------------------------------------------- the above report in Macintosh PC UNIX Text HTML format documents on this page through Loansome Doc --------------------------------------------------------------------------------

To: jbe who wrote (27363)	6/3/1999 10:09:00 PM
From: Gauguin	Read Replies (2) \| Respond to of 71178

>>>because I prefer to use diet and exercise, rather than drugs, to keep my old-lady ailments at bay. :-)<<< You doggone iconoclast. Good for you. May I crawl to your house door one day. I am not an expert. Not even a spurt. I'm not informed. Really. I am more in the consumer end of things. My spouse is pretty informed, but what she reads to me is dustbunnies in the wind. I tend to look at populations and see what they eat and if they are healthy. There are a lot of lacto-vegetarians in the world. I have hard bones and eat a bunch of tofu. We know what to do with it, to make it the neatest stuff since avocado. We are gourmets of a sort. {My bones are failing for other reasons than their density.) I accede to your sources, as I don't know. And again, I admire people who look to their diet and lifestyle (e.g. exercise) as keyways to their health. I have no agenda to advertize. No thinking to influence. So I'll kind of refrain on that, as I usually do.