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I tried working up to Ray's suggested Ca dosage of 2000 mg. Twice I had to quit because of very unpleasant symptoms that could only have been a Ca overdose.
This seems likely. The authors from that publication acknowledge the possibility, but didn't develop on it for thinking that it wasn't viable or for picturing the mammoth.Once the time machine will be invented, and we can travel back in time to observe our ancestors, we will find how absurd most of the contemporary statements about the nutrition of "hunter gatherers" or "preagricultural" people are. I bet you that no individual in the history of mankind ever got anything close to that amount of calcium from greens, or that they even ate greens habitually. Hunter gatheres and tribes that still cling to the old ways got/get their caclium from animals, not plants. It's the stereotypical immage of the caveman hunting a monstrous mammoth that dominates our picture of their nutrition - lots of meat, and berries and greens. In reality, most of their prey probably were very small mammals, fish, and birds, which traditional people still hunt today. They often consume them whole, including the bones. This is an excellent source of calcium, and even a very small amount of small prey can yield the daily amount of needed calcium.
The prevalence of osteoporosis in developing countries is low compared to most industrialised countries despite an apparent low Ca intake. It is possible, however, that food surveys have overlooked important Ca sources in developing countries. Small fish eaten with the bones can be a rich source of Ca, even though Ca from bone may be considered unavailable for absorption. In the present study, absorption of Ca from indigenous Bengali small fish was compared with the Ca absorption from milk. Ca absorption from single meals was determined in 19 healthy men and women (21-28 y). Each subject received two meal types on two separate occasions. Both meals consisted of white wheat bread, butter and ultra pure water with the main Ca source being either small Bengali fish (397 mg Ca in total) or skimmed milk (377 mg Ca in total). The meals were extrinsically labelled with 47Ca, and whole-body retention was measured on day 8, 12, 15 and 19 after intake of each meal. The labelling procedure was evaluated by an in vitro method. The calculated absorption of Ca as measured with 47Ca whole-body retention was 23.8 +/- 5.6% from the fish meal and 21.8 +/- 6.1% from the milk meal (mean +/- SD), which was not significantly different (p = 0.52). Even after correction for an incomplete isotope exchange, as indicated by the in vitro study, Ca absorption was similar from the two meal types. It was concluded that Ca absorption from small Bengali fish was comparable that from skimmed milk, and that these fish may represent a good source of Ca.
Calcium absorption from small soft-boned fish - PubMed
The prevalence of osteoporosis in developing countries is low compared to most industrialised countries despite an apparent low Ca intake. It is possible, however, that food surveys have overlooked important Ca sources in developing countries. Small fish eaten with the bones can be a rich source...pubmed.ncbi.nlm.nih.gov
Calcium Absorption from Small Soft-boned Fish
M. HANSEN I , S. H. THILSTED, B. SANDSTROM, K. KONGSBAK, T. LARSEN*,
M. JENSEN** and S. S. S0RENSEN**
J. Trace Elements Med. BioI. Vol. 12, pp. 148-154 (1998)
The results from the present study suggest that a daily Ca intake of 400-500 mg as recommended by WHO/FAO for adults (1) can be met by eating 34-43 g fresh small fish and that 43-60 g of the fish would be sufficient to cover the 500-700 mg Ca per day recommended for adolescents. The latest national food survey of Bangladesh (1981-82) showed an average intake of 23 g fish per day (27). Recent minor surveys suggest that intake of fish in Bangladesh has dropped to some extent (28). This trend is probably due to the introduction and promotion o flarge and more expensive fish species in aquaculture projects. However, small fish species are still commonly eaten by the rural population, who cannot afford to buy the larger fish (28).
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I.e. 70g small fish
What symptoms? I’ve consumed 4-5g of calcium over the last 6 months without any negatives
Supplemental powder ?
Milk and cheese
Oh ok . Any benefits ?
Yeah I definitely feel the benefits of lower estrogen and prolactin. I prefer drinking more milk because too much cheese seems to be constipating. The only downside for me is cost because I drink grass fed raw milk
Interesting thanks. I can't tolerate any milk but I migjt try increasing my caclium intake by 1 or 2g .
what mechanism are you using for it? i get around 3000mg a day from a half gallon whole milk...
Are dairy products problematics digestively in your opinion?
Not being used? In what way?
I am using eggshell powder, calcium carbonate tablets from Walgreen's and a Tum's tablet. So it is all calcium carbonate. I don't drink milk. I do eat some nonfat Greek yogurt.
I have cloudy urine sometimes during the day and I looked at it under the microscope and it is all amorphous crystals. I assume it is from excess calcium carbonate because the urine use to be clear. I have lowered the amount from about 2700 mg to 2400 mg. But I sleep so well now I don't want to lower it too much.
That would happen to me too when I used eggshell calcium. No such issue with goat’s milk and cheese even up to 4000mg+ calcium a day.
would it be safe to get 9500mg+ calcium daily all from skim milk and whole milk. what would happen with calcium that high. super metabolism?
I think Ray has said in the past he sees no upper limit. I definitely think there is more likely to be an issue when supplementing it than from consuming it in foods like milk though.
milk has phosphate to balance it, and vitamin A, although skim milk loses the vitamin A
