Calcium - don’t ditch the dairy. Like every nutrient that we have consumed over the last millennia or ten, there are reasons why some foods appear more beneficial than others. Using poor tests like Igg4 sensitivity/allergy analysis many ‘experts’ have convinced us that one of our most potent foods is causing us more harm than good. I am on the bandwagon that as far as my food goes (meat and dairy) grass fed, free range and organic remain a better choice for all concerned. Hormesis can only take us so far when it comes to pesticide and pollutant exposure and the individuality of tolerance and adaptation remains a knife-edge for many.
Without getting into the arguments of which type of cows produce what compounds. This topic is merely aimed at why people have issues with calcium uptake and is the problem really a dairy issue?
Many people who have had blood tests are often told to take extra calcium supplements in response to presenting with low serum calcium. However the issue of lowered calcium in the blood may have nothing to do with the amount of calcium that they are ingesting. Here are some potential mechanisms:
• Low levels of vitamin D: Vitamin D is a well-known nutrient/hormone like substance that allows for the adequate uptake of calcium into bones and teeth. amongst many other functions which include immune system function. (This synergistic relationship can be observed in reverse also) • High phosphorus/phosphate diet. In addition to the added phosphates to foods and crops. Current recommendations suggest increasing portions of grains, beans and peas, which not only contain phosphates but also contain phytates, which can block mineral uptake. Low magnesium is also an issue. • Increased estrogens and xenoestrogens that increase the stress response and cause calcium to leach from the bones into soft tissues. A decrease in available progesterone can decrease bone density. • Poor reabsorption factors such as low intake of vitamin K2 • An actual calcium deficiency from low calcium intake • Excessive exercise which can be due to inadequate calcium and poor carbon dioxide retention. • Inability to absorb calcium from the digestive tract, low stomach acid levels/hypochlorhydria and damage to villi/intestinal lining, which can be observed in celiac but increasingly with intestinal hyper-permeability, endotoxin and chemical induced damage. • Decreased blood albumin levels which bind calcium. Digestion and dehydration issues mainly. • Regulation of PTH or parathyroid hormone.
Osteoporosis is on the rise but its increasing prevalence is not due to low calcium intakes but due to many complex interactions, between stress, pollutants, low sunlight exposure, excessive exercise and nutrient levels. The common reductionist approach is to throw the same nutrient at the problem in larger amounts and hope that this so called ‘deficiency’ is corrected.
It's worth noting that elevated serotonin levels in the blood are responsible for bone less. An increase in serotonin can be viewed with both a temporary spasticity of smooth muscles tissues and loose or watery stools. The role of serotonin is to increase evacuation of the bowel, mediated by an increase in its production from the entero chromaffin cells in the digestive tract, where some 95% of the bodies own supply is created. A diet high in nuts and seeds, which contain serotonin are likely to irritate the digestive tract. From an evolutionary survival perspective, this allows for seeds to be passed out from the bowel without being digested, ensuring plants survival. Increased aggression and irritability have been noted in elevated serotonin levels, which also correlates with a decrease in bone density. Ensuring adequate calcium in the diet during these times is therefore essential.
When phosphorus increases and there is a lack of vitamin D, PTH increases to balance out the need for increased calcium, which is taken from bones and teeth. In essence much of the calcification of arteries and soft tissues can be attributed to this situation. Some of the signs that can be observed with low calcium levels are:
• Muscle cramps • Nose bleeds • Soft fingernails • Frequent cold sores, rashes • High or low blood pressure • Irritability • Fevers with mild colds
Administering calcium supplements to those with calcium deficiency is much like talking over someone before they have a chance to speak. You only here there initial words but fail to here what they are truly saying.
Much of the marketing and sales of supplements these days are suggestive that our food does not give us the nutrients that we need and that we need to stay plugged in to the rattle of supplement bottles opening daily. When in fact if we just strive to improve digestion and cofactor optimisation this simply isn’t the case. In the case of dairy, when we flippantly talk about super foods, when you look at the nutrients provided from dairy, it is indeed a food with plenty to say for itself, particularly in the situations of growth, stability and anti-stress.
1. Christodoulou, S. , Goula, T., Ververidis, A., and Drosos, G. Vitamin D and Bone Disease. Volume 2013 (2013), Article ID 396541, http://dx.doi.org/10.1155/2013/396541 2. Weatherby, D. Blood Chemistry Analysis. Bear Mountain Publishing. 2002.