The World Health Organization Red Meat Brouhaha

The World Health Organization (WHO) just announced that red meat is “probably carcinogenic to humans.”

Yep–Right up there with glyphosate, cigarettes, alcohol and asbestos.

——–> insert facepalm <——–

This announcement is absurdly misguided and largely based upon the notoriously two least reliable forms of science we have:

1) Observational studies driven by…

2) Food questionnaires

(By the way, what did YOU have for lunch on Thursday of last week/month year?)

This is all fully based on the idea of “guilt by weak association” and any rational person knows that association is NOT causation.

UGH–Back to the nutritional Dark Ages we go…

The WHO seems to be mostly citing evidence from research based on observational studies and food questionnaires published in the Archives of Internal Medicine in 2012, which included an analysis of “two prospective cohort studies.”[1] Similar in its failures to the ill-conceived and embarrassingly poor 2011 World Cancer Research Fund “Meta-analysis”[2]—also entirely based upon observational studies and questionnaires— ZERO distinction was made between feedlot meat and 100% grass-fed meat (a potentially huge distinction), and no real effort was made to distinguish the effect of the red meat from whatever else people happened to be eating. What did they include as “red meat?”   McDonald’s hamburgers, pizza, hot dogs, tacos, bologna, nitrate-laced bacon and feedlot meat (GMO-fed and God knows what else). Although they did graciously concede that red meat is “only slightly less hazardous than preserved meats.” And red meat consumption was not separated in any way from whatever else anyone was eating or doing to their health (alcohol intake, sugar consumption, grains, etc. or other lifestyle factors). And since 97% of all meat production is commercial feedlot-based, grass-fed meat likely didn’t even factor into these results at all.

Suspiciously, too, the Archives of Internal Medicine study used what is called relative risk to show their results. “Relative risk” is frequently used to make things look far worse than they are—rather than what is called absolute risk, which really tells it like it is (but might make your results look less dramatic and, well, boring and meaningless).

It is a significant fact that cancer has been consistently reported to be extremely rare to even non-existent in red meat-eating, hunter-gatherer societies.[3],[4] What in particular has characterized the difference between even Neolithic hunter-gatherer diets and the modern-day Western diet causing us so much trouble now? Data from 229 hunter-gatherer societies included in the Revised Ethnographic Atlas indicate that hunter-gatherer diets differ from typical Western ones in basically two aspects: first, a strong reliance on animal foods (45-65% of energy or E%) and second, the consumption of low-GI [glycemic index] plant foods such as fibrous vegetables, some fruits, nuts and seeds.[5] But we also need to take the quality of the foods they had available to them into account and the very, very different nutrient/fatty acid profile between feedlot meat and 100% naturally grass-fed meat/wild game. Grain fed meats are predominated by potentially inflammatory omega-6 content (while being nearly devoid of healthy omega-3’s), versus 100% grass-fed and finished meat (and wild game) which supplies a high percentage of highly anti-inflammatory omega-3 fatty acids (EPA/DHA). Omega-3’s have additionally shown some significant anti-cancer benefits.[6] [7] [8]

Quality counts for a LOT and we all need to start taking that seriously. Deadly seriously.

In spite of the WHO declaration, other research has shown no meaningful link between diets higher in dietary animal fat and increased cancer risk.[9],[10] With respect to colon cancer, alone, there are many, many more (and better designed) studies finding little to no significant association with red meat and cancer than those that do, some even showing an actual lowered risk![11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25]

With respect to Paleo—at least the form of Paleo I personally recommend and the form adopted by The Paleo Way, bases its meat consumption overall on two very distinct recommendations:

  • Red meat should only come from 100% pasture fed and finished animals. NO feedlot and/or commercial processed meat!
  • I recommend meat/protein in general to be consumed in strict moderation—no more than about 1 gram per kg of ideal body weight (i.e., approximating the weight of a person’s lean tissue mass)

Excessive protein from any source is potentially bad by virtue of 1) its up-regulation of proliferative mTOR pathways 2) its increase of IGF-1, which increases non-specific cellular proliferation and 3) the excess presence of glutamine and 4) protein in excess of what we need in order to meet our basic requirements is readily (up to 40% or so) converted to sugar and used the same way. –And SUGAR (not red meat) is cancer’s #1 most essential metabolic fuel.

With respect to the benefits of exclusively grass-fed meat (over feedlot meat), a particular form of fat that has been more recently lauded for its anti-cancer benefits is one exclusively found in the fat of animals fed on nothing but natural pasture.[26] [27] [28] [29] [30]    In fact, CLA may be one of the most broadly beneficial and potent cancer-fighting substances in our diet. It is somewhat uniquely able to (in very small amounts) block all three stages of cancer: 1) initiation 2) growth/promotion and 3) metastasis. Most “anticancer nutrients” are typically helpful in only one of these areas. To date, beneficial effects of natural CLA from animal fat have been found in cancers of the breast, prostate, colon and skin. In animal studies, as little as one half of one percent CLA in the diet of experimental animals reduced tumor burden by more than 50 percent.[31]   As if this wasn’t exciting enough, there is more direct evidence that CLA may reduce cancer risk in humans. In a Finnish study, women who had the highest levels of CLA in their diet had a 60 percent lower risk of breast cancer than those having the lowest levels. Switching from grain-fed to exclusively grass-fed meat literally places women in this lowest risk category!

Additionally, French researchers measured CLA levels in the breast tissues of 360 women and found that the women with the most CLA had the lowest risk of cancer. In fact, the women with the most CLA had a staggering 74% lower risk of breast cancer than the women with the least CLA. [32]   In yet another study, human breast cancer cells were incubated in milk fat high in CLA or in an isolated form of CLA without any milk fat. The high CLA milk fat decreased cancer growth by 90 percent but the isolated CLA decreased it by only 60 percent. When the cells were incubated in the omega-6 fat, linoleic acid, found most abundantly in grain and grain-fed animals, cancer cell growth increased by 25 percent![33] Other women with the most CLA in their diets were also shown to have a 60% reduction overall in the incidence of breast cancer.[34]

Other studies have additionally shown breast cancer and even colon cancer preventative benefits.[35] [36] [37] [38] In keeping with this, CLA additionally exerts potent anti-inflammatory effects.[39] The inherent stability of CLA also seems to maintain itself even when meat is cooked.[40],[41] One study pointed out the following, Of the vast number of naturally occurring substances that have been demonstrated to have anticarcinogenic activity in experimental models, all but a handful of them are of plant origin. Conjugated linoleic acid is unique because it is present in food from animal sources, and its anticancer efficacy is expressed at concentrations close to human consumption levels.”[42]   CLA is highly abundant, too, in wild game. The implication here is that naturally occurring CLA in animal fat has always played an important role in our diets and may possibly even be a contributing factor to the near-zero incidence of cancer found in hunter-gatherer populations.[43] For all you Aussies out there, one study reported unusually high levels of CLA in (of all things) kangaroo meat![44]

ONLY CLA from the fat of wild game and fully pastured animals has the real anticancer health benefits you want.[45] Even though synthetic CLA is sold in capsules in health food stores, it lacks the beneficial form found exclusively in grass-fed meats and may even have potentially adverse effects. But I digress…

According to a research collaboration between Clemson University and the USDA in 2009, in addition to cancer-fighting CLA, fully pastured meat contains the following additional, potentially anti-cancer benefits[46]:

  • Higher in beta-carotene
  • Higher in vitamin E (alpha-tocopherol)
  • Higher in the B-vitamins thiamin and riboflavin and B12
  • Higher in the minerals calcium, magnesium, and potassium
  • Higher in total omega-3’s[47] [48] [49]
  • A healthier ratio of (inflammatory) omega-6 to anti-inflammatory omega-3 fatty acids (1.65 vs. 4.84)
  • Higher in trans-vaccenic acid (TVA–which can be transformed into CLA)

Also, lamb/sheep fed exclusively on pasture vs. grain contains twice as much lutein (closely related to beta-carotene but more easily absorbed), which has shown possible preventative benefits with respect to both colon and breast cancer (while additionally reducing the risk of macular degeneration).[50]

So…in a nutshell, this WHO declaration will not change the recommendations I have been making all along. 100% grass-fed and finished meat (not just red meat, by the way) consumed in moderate amounts along with quality, organic fibrous plant-based foods has been and will continue to be among my foundational recommendations for optimal health.

~ Nora Gedgaudas, CNS, CNT, BCHN

 

“Red meat is NOT bad for you. Now blue-green meat, THAT’S bad for you!”

                           —Tommy Smothers

Source:  http://www.primalbody-primalmind.com/who-red-meat-brouhaha/

Global Research Shows Dairy Products and Calcium Supplements Do Not Make Bones Stronger

The dairy industry has finally been given one big swift kick where they need it most, in the scientific credibility department where top officials have been falsely linking dairy and bone strength for decades. The study, published by the British Medical Journal, found that people don’t get stronger bones by eating dairy products or taking calcium supplements.

pg_10_mrsa_gettyDairy products, specifically milk is one of the beverages still aggressively pushed on children as a health promoting food, especially relating to strong bones.

What interesting about cow’s milk is that the more people drink, the more likely they are to die or experience a bone fracture and other diseases. The risks are especially pronounced for women.

Taking into account studies from around the world, the systematic review and meta-analysis found that those who took calcium were just as likely to suffer from fractures as those who did not.

Dr Ian Reid from the University of Auckland in New Zealand stated that the focus on treating bone diseases, such as osteoporosis, needs to be elsewhere.

“I think we’ve actually misdirected a whole lot of effort into the use of calcium supplements, in particular in North America, where use has been higher for last 30 years,” he said.

The dairy industy has been hard at work the last 50 years convincing people that pasteurized dairy products such as milk or cheese increases bioavailable calcium levels. This is totally false. The pasteurization process only creates calcium carbonate, which has absolutely no way of entering the cells without a chelating agent. So what the body does is pull the calcium from the bones and other tissues in order to buffer the calcium carbonate in the blood. This process actually causes osteoporosis.

Pasteurized dairy contains too little magnesium needed at the proper ratio to absorb the calcium. Most would agree that a minimum amount of Cal. to Mag Ratio is 2 to 1 and preferably 1 to 1. So milk, at a Cal/Mag ratio of 10 to 1, has a problem. You may put 1200 mg of dairy calcium in your mouth, but you will be lucky to actually absorb a third of it into your system.

Over 99% of the body’s calcium is in the skeleton, where it provides mechanical rigidity. Pasteurized dairy forces a calcium intake lower than normal and the skeleton is used as a reserve to meet needs. Long-term use of skeletal calcium to meet these needs leads to osteoporosis.

Dairy is pushed on Americans from birth yet they have one of the highes risk of osteoporosis in the world. Actually, people from the USA, Canada, Norway, Sweden, Australia, and New Zealand have the highest rates of osteoporosis.

The research investigated putative mechanism by which calcium intake affects bone health namely by increasing bone mineral density (BMD). BMD is a surrogate endpoint for fracture risk that allows biological effects to be explored in randomised controlled trials of modest size.

Following old information

The results from the new study flies in the face of long-held beliefs that calcium makes for stronger, better bones.

For years, US guidelines have advised men and women to take anywhere from 1,000 to 1,200 mg of calcium per day to help prevent fractures and improve bone density.

Reid said this likely lasted for so long due to an overreliance on studies from the 1970s and 1980s.

Now, there are more sophisticated bone density studies, and none have shown the need for anything more than 500mg of calcium per day for bone density health.

Going a step further, the study said too much calcium may cause build ups in the arteries or in the kidneys, which can cause ailments such as heart disease or kidney stones respectively.

“Dietary calcium intake is not associated with risk of fracture, and there is no clinical trial evidence that increasing calcium intake from dietary sources prevents fractures,” the study said.

“Evidence that calcium supplements prevent fractures is weak and inconsistent.”

Methodology of the study

The researchers looked at two studies, finding in one that increasing calcium intake from supplements increases bone density by 1% to 2%, something they said is unlikely to create a meaningful reduction in the risk of fracture.

“This is not a cumulative benefit,” Reid said. “It’s only 1% at any year. It’s a one off small gain. When you look at the fracture data in the large high quality studies carried out in the last 10 to 15 years, we found there is no total benefit to total number of fractures. There may even be an increase. I think we should really be deleting calcium as a significant tissue in management of osteoporosis.”

In another study, researchers found that dietary calcium is not associated with risk of fracture, with no clinical evidence finding that increase in consumption helps prevent fractures.

Professor Karl Michaelsson from Uppsala University in Sweden wrote in an accompanying commentary with the study that the although recommendations point to those over 50 taking calcium, most will not benefit by increasing their intakes.

“The weight of evidence against such mass medication of older people is now compelling, and it is surely time to reconsider these controversial recommendations,” he wrote.

Supplement Quality Key

While some dairy may be useful to help the elderly keep weight on their body as they get older, many low-quality calcium supplements appear to be ineffective for bone health.

Most supplements on the supplement market today contain calcium carbonate which is an inferior form of calcium and manufacturers attach a simple chelating agent like citric acid to make it more absorbable, however the end product is inferior to other calcium supplements such as calcium orotate, which is the only known form of calcium which can effectively penetrate the membranes of cells.

Many of these supplements are increasing the risk of kidney stones and abdominal problems and whose risks are greater than the benefits.

“They’ve been so entrenched and supported by industry for so long that it’s taking a while to turn around,” Reid said.

Effective Supplementation

If you want to supplement for calcium intake you must seek a reputable and balanced calcium/magnesium formula. Researchers examined 21 formulations of calcium carbonate (both natural [i.e., oyster shell] and refined). Four out of seven natural products and four out of 14 refined products, including brand products, had measurable lead content. A research team in California found essentially the same contamination in calcium supplements.

Acid rebound. Calcium carbonate may cause acid rebound: the stomach overcompensates for the high dose of calcium carbonate, which is alkaline, by churning out more acid. For that reason, people with a history of stomach ulcers are advised that they may not tolerate it and may have to switch to calcium citrate.

Constipation. Calcium supplements can have a mild binding effect but by themselves don’t usually cause serious constipation. But if you’re taking another supplement or medication that binds the stool, the addition of calcium supplements could cause a problem.

Too much calcium. Although it doesn’t happen often, some people have taken so much calcium that it causes hypercalcemia, an above-normal level of calcium in the blood since most of the calcium carbonate is not absorbed. Hypercalcemia may cause nausea, vomiting, confusion, and other neurological symptoms.

The type of minerals in the formula determines the absorption levels: Opti-Cal/Mag with Vitamin K2 is a co-enzyme complex, heat-stabled molecules that must be associated with another enzyme for them to perform their function in the body. It is necessary in the utilization of vitamins and minerals for proper delivery to the cell nucleus. One study found that Opti-Cal/Mag complex is 8.79 times more absorbed into the blood than calcium carbonate and 2.97 times more than calcium gluconate.

6 WAYS TO BUILD STRONG BONES

1. Eat calcium rich foods
Eat foods high in calcium. The best food sources are non-pasteurized raw dairy sources such as raw milk/yogurt, as well as bony fish, such as sardines. Leafy green veg such as kale, broccoli and spinach are also rich in calcium. Dried herbs and dried fruits such as figs and currants are also good choices. Seeds such as sesame, chia and flax are also rich sources of calcium. Also, enjoy foods that contain sulfur such as garlic and onions.

2. Food selections/combinations are critical
Try not to eat whole grains and calcium-rich foods at the same time. Whole grains contain a substance that binds with calcium and prevents proper absorption. Some foods that contain compounds such as oxalic or phytic acids, such as sweet potatoes, beans, rhubarb, celery and beets, can also decrease the amount of calcium that’s absorbed when eaten at the same time as calcium-rich foods.

3. Avoid the causes of mineral excretion
Pass on phosphate-containing foods such as soft drinks. Phosphorus causes the body to excrete calcium. Limit or avoid high-protein animal foods. A diet high in protein causes calcium to be excreted from your body. Decrease caffeine consumption. People who smoke have significantly lower bone density, while drinking alcohol can also prevent your bones from absorbing the maximum nutrients from your food.

4. Get more Sunlight and Vitamin D
Vitamin D helps the body absorb calcium. Although some is found in oily fish, our main source comes from the effect of sunlight on your skin. It’s estimated that half of us have a deficiency because we don’t get outside enough or because we always use sunblock. It is especially important to maximize sun exposure between May and September to keep vitamin D levels topped up. Just 10 minutes of sunlight a day on bare arms and your face can cut your risk of bone fractures by a third. A half hour exposing your torso is equivalent to roughly 10,000 units of Vitamin D.

5. The right exercise
Another vital way to boost your bones is weight-bearing exercise –basically anything that has you upright and using your body weight. Good choices include squatting, rope skipping, aerobics, plyometrics, dancing or brisk walking. “Research shows that if you don’t exercise you end up weeing out all the calcium you take in instead of storing it in your bones,” warns Professor Dawn Skelton, an aging and health specialist at Glasgow Caledonian University. “Ideally we should aim for 150 minutes of moderate activity per week. “Put simply, the more hours we spend on our feet, the fewer bone breakages we should have in later life.”

6. Avoid Medications and Medical Therapies
Acid-blocking medications used for heartburn and other gastrointestinal conditions can block the absorption of calcium through the stomach walls. Stomach acids break down food during the digestive process, allowing the nutrients to become absorbed into your body. Medications designed to stop acid production or decrease the amount of acids present in your stomach can have a negative effect on calcium.