Search results for calcium

Dairy. Do? Or, Don’t?

Posted by Liz on Jan 6, 2014 in diet | 0 comments

It’s a new year, we’re past the holidays and those resolutions to eat better may be confusing. Where do you start? And what should you give up first? Sugar? Grain products? Fats?

Whoa! Hold on there, because what I’m about to share may rock your world when it comes to thinking about fats.

When I think about fatty foods, one of the first things I think about are dairy products. Yet, research shows that dairy intake is below the recommended level,  despite well-established recommendations and of course, their contribution to bone health. What’s more, it appears that eating dairy products may actually lower the risk for metabolic syndrome — the constellation of conditions such as obesity, glucose intolerance, high blood pressure and high cholesterol — that together lead to diabetes, coronary artery disease and stroke. A scary related fact is that metabolic syndrome affects more than a third of women after the age of 55, and has been linked with hormonal changes that occur during menopause (check out the metabolic syndrome posts in the Archives).

In a review in the January online edition of Maturitas, Canadian researchers share a few important facts about dairy products and why you may want to reconsider their role in your diet:

• Obesity. Contrary to popular belief, eating dairy may actually protect against weight gain. While this appears to be counterintuitive, research has shown that dairy may have a beneficial effect on the way that the body breaks down sugar and converts it to fat for storage, and instead, promote the breakdown of fats. Calcium also appears to help the body break down large fat molecules so that the fat is more readily available for energy. And, whey protein appears to help preserve muscle, while lactose and dairy proteins may boost the feeling of fullness. What’s more, eating dairy may actually help reduce that tire around your midsection. However, like any dietary rule of thumb, too much is too much. Dairy intake should be limited to two to three servings a day and products should be consumed along with a balanced diet.
• Blood sugar. While the evidence is still being teased out, dairy may help to keep blood sugar levels in check by preventing insulin sensitivity, that is, balancing the way that insulin is produced and the cells’ reaction to it (when cells lose their sensitivity to insulin, diabetes results).
• Fat in, fat out. Dairy products have long been linked to saturated fat, which has been shown to increase the risk for heart disease. Yet, in moderation, whole fat dairy may actually help balance cholesterol and blood fats levels and even boost good cholesterol – HDL – levels. Still, this is not a free pass for eating all the whole dairy products that your heart desires; everything in moderation. In other words, if your daily intake includes a serving of whole dairy, you need to compensate elsewhere in your diet.
• Blood pressure. Data suggest that consumption of 3 servings a day of low-fat dairy products may actually reduce the risk of high blood pressure by roughly 16%. The best choices appear to be ‘fluid dairy’ (i.e. milk and yogurt) rather than cheese. While researchers are uncertain how dairy yields a protective effect on blood pressure, it may be due to their action on the cells that line blood and lymphatic vessels. Among their various function, these cells, better known as the endothelium, help keep the blood pressure in check.
• Inflammation. Increasingly, low grade inflammation in the body is being linked to disease. In fact, it is considered a key factor in the development and progression of metabolic syndrome. Certain components in dairy may actually reduce blood markers of oxidative stress and inflammation.

I asked my friend and colleague, and registered dietician/nutritionist extraordinaire Danielle Omar  to weigh in on dairy and whether there is any advantage to using low fat versus full fat products. She says that she’s  “not a huge fan of fat free dairy products, especially skim milk. The fat in milk helps with the absorption of fat soluble vitamins (A, D, E, K) and other nutrients that can only be assimilated into the body when eaten with fat,” adding that it’s likely that “choosing more fat free vs whole fat dairy will cause weight gain over time.” The reason? People tend to eat more low- versus full-fat dairy before they are satisfied. Moreover, some of the low-fat dairy products are very high in sugar and without fat to slow digestion can cause insulin spikes/hunger crashes —  can lead to overeating. Danielle also says that “people tend to overeat low-fat foods because they think they are being “healthy.”

Dairy? Do! Just be certain to balance it out with other healthy items in your diet.

Wednesday Bubble: When it comes to bone health, D is for “don’t bother”

Posted by Liz on Sep 25, 2013 in osteoporosis | 0 comments

Conventional wisdom suggests that combining calcium with vitamin D improves calcium absorption, and therefore may help prevent fractures resulting from bone loss and the body’s inability to replace bone. Notably, in younger people, the body works efficiently to replace bone after it breaks it down. However, after the age of 30, women begin lose bone mass and as I’ve written time and again in Flashfree, by the time we hit menopause, this process speeds ups, resulting in osteopenia and of course, osteoporosis.

And yet, researchers are now saying that they’ve confirmed that while calcium supplementation (1,200 mg daily) may reduce bone turnover and by default, improve overall bone health, adding vitamin D offers no additional advantage unless a woman has an existing vitamin D deficiency. In this recent study of 159 menopausal women, they compared vitamin D and calcium to calcium alone to vitamin D alone to placebo. They then measured a marker of bone turnover in the blood — PTH, or parathyroid hormone — over a period of six months.

Not surprisingly, they found that when they compared the women taking daily calcium to those who obtained calcium naturally in their diet, calcium was a clear winner, resulting in a significant reduction in bone turnover. However, when vitamin D was added to daily calcium, it did not seem to add any benefit (although it also did no harm).

No harm, no foul?

Not quite. The researchers say that too much calcium is too much of a good thing and that calcium balance is critical. The addition of vitamin D may lead to a condition called hypercalciuria — excessive calcium in the blood — which over time, can impair kidneys. The best practice is a cautious one; consult your practitioner to learn what your calcium levels are and proceed from there. If s/he recommends supplementing natural dietary intake of calcium with supplements, then you are good to go. However, when it comes to D and bone health? Maybe don’t!

In the interim, if you are interested in learning more about calcium do’s and don’ts, the archives hold a wealth of information. Check these posts out!

Oh dem bones! Time to cut your losses.

Posted by Liz on Nov 19, 2012 in osteoporosis | 2 comments

Remember the ‘Capture the Fracture’ post from a few weeks back? In it, I reported that the International Osteoporosis Foundation is urging women and men alike to receive screening for bone loss, especially if they had some sort of fracture in their early years. Ironically, over the weekend, a close friend shared that she had been told that she has osteopenia, i.e. low bone mineral density, and it started me wondering how many of my readers have actually gone to their practitioners for a baseline? Me? I am guilty as charged; in fact, because of an absolutely crazy work schedule for most of this year, I’m very much behind on all my health visits.

So, back to osteoporosis, osteopenia and fragility fractures. I imagine that many of you are growing tired of reading about these topics on Flashfree but I can’t help myself; they’re vitally important.

According to the National Osteoporosis Foundation, by 2020 — a mere seven years from now — more than half of Americans over the age of 50 are expected to have low bone density or develop osteoporosis. Data also suggest that the risk of hip fracture in women is greater than the risk of all female cancers combined. What’s more, women who experience a hip fracture in their later years have almost a 3-fold risk of dying in the three months that follow.

Are you paying attention yet? You should be, because as I’ve written time and again,within the first 10 years of the onset of menopause, women  lose up to 50% of their spongy, or trabecular bone (the network that makes up most of bone structure) and up to 30% of their cortical bone (the outer shell).

However, it’s not just hormones at play. In the latest issue of the International Journal of Medical Engineering and Informatics, Portugese researchers are reporting that several factors appear to be associated with an increased fracture risk in menopausal women with and without a history of fracture, including age over 65, lower bone mineral density (BMD), a sedentary lifestyle, and eating or drinking caffeine-containing foods. In population of 127 women, almost 41% had osteopenia and roughly 20%, osteoporosis. Less than 40% had normal bone mineral density values.

However, these factors are not the only variables that you should be thinking about. Research shows that many medications can contribute to bone loss. They include:

• Aluminum-containing antacids
• Antidepressants (SSRIs), such as Lexapro®, Prozac® and Zoloft®
• Gonadotropin releasing hormone (GnRH) such as Lupron® and Zoladex®
• Heparin
• Lithium
• Depo-Provera®
• Methotrexate
• Proton pump inhibitors (PPIs) such as Nexium®, Prevacid® and Prilosec®
• Steroids such as cortisone and prednisone
• Tamoxifen® (premenopausal use)
• Type 2 diabetes medications (Actos® and Avandia®)
• Thyroid hormones in excess

And, a small case study analysis has shown that if you are a woman who has had estrogen receptor positive breast cancer and previously treated with aromatase inhibitors (e.g. Arimidex, Femura), you have a 27% increase for the risk of bone loss and a 21% risk for   a hip fracture at an earlier age. Additionally, these events can occur at a higher bone mineral density level than postmenopausal women who have not had chemotherapy.

Short of starting medical therapy with bisphosphonates (which have a rash of problems associated with their use), what can you do? Clearly, a great place to start is with regular weight-bearing exercise and insuring that your diet contains adequate amounts of calcium and vitamin D, although we know that some of amount of bone loss is inevitable as we age. However, before you become frustrated, there are a few lesser known steps that have clinical evidence behind them:

• Eat prunes. Researchers say that as little as 6 to 10 a day can help boost BMD and reduce rates of bone resorption.
• Incorporate onions into your diet. Onions are another type of functional foods that have been shown to improve bone density.
• Eat more sea fish. Data have shown that who make sea fish (not shellfish or freshwater fish) at least 16% of their daily protein intake have greater BMD.
• Talk to your practitioner about taking the lowest effective dose of the medications listed above.
• Drink moderately. One or two alcoholic drinks a day may be protective. More?  Not only does your liver hate you but your bones are at risk too.

There’s bad to the bone. And then, bad to the bone. Time to cut your losses, literally…

Capture the fracture

Posted by Liz on Oct 22, 2012 in bone health, osteoporosis | 0 comments

Sounds like a new reality show for the over 50 set right? But it’s pretty serious.

A new report from the International Osteoporosis Foundation (IOF) demonstrates that one in two women over the age of 50 are at risk for fragility fractures that may be related to bone loss and not only trauma. In other words, broken hip bones, or bones in the wrist, arm or their vertebrae — usually resulting from a fall — may be a signal that something else is also at play. Moreover, the IOF reports that approximately 80% of both men and women who are treated at clinics or hospitals falling a fracture are not receiving screening for osteoporosis, osteopenia (low bone mineral density) and associated risk for future fractures.

So, why does this matter?

Well, according to IOF statistics, half of people who ultimately end up with a fractured hip in old age had a fragility fracture when they were younger. Moreover, 1/6th of menopausal women have had some sort of fragility fracture in their lives. Considering that women in particular lose up to 50% of their spongy, or trabecular bone (the network that makes up most of bone structure) and up to 30% of their cortical bone (the outer shell) within the first 10 years of the onset of menopause, and the body is creating a perfect storm. According to the IOF, up to a quarter of hip fractures can be prevented by early diagnosis and appropriate osteoporosis testing and follow up treatment.

Mind you, the treatments for osteoporosis are controversial. As I’ve written previously, the most popular drugs for osteoporosis — bisphosphonates — may be risky after about 5 years of use and even increase fracture risk in some women. However, there are important non-pharmacologic steps that can be taken to counterbalance risk, such as:

• Weight bearing exercise
• Insuring that you don’t sit too long at any given time while at work (women who sit for more than 9 hours a day have a 50% increased risk of hip fracture)
• Strengthening back muscles, which can help prevent vertebral fractures
• Insuring that adequate amounts of low-fat dairy, tofu and certain green vegetables are included in your daily diet. Note that some plant foods contain substances that can lower amounts of available calcium to the body, e.g. oxylates in spinach and rhubarb or phytates in dried beans, so you want to be sure to counter that with vegetables like broccoli, kale and bok choy, which are low in these substances.

Even if you eat a proper diet and exercise daily, you are still at risk of bone loss and fracture – it’s a natural result of aging and waning estrogen. However, if you are fifty or older and suffer a fracture, heck even if you are slightly younger, request a screening for bone loss and osteoporosis. The IOF says that most clinicians don’t follow this path — possibly due to cost concerns, time or even where the responsibility for care even lies. The latter is particularly important and is much like the ‘Bermuda Triangle,” where experts say that patients can disappear into a maze of “orthopedists, primary care physicians and osteoporosis experts” only never to be seen again (until they break a hip).

As always, information is power and the first point of care is truly you. Want to stay standing well into old age? Capture the fracture now.

Wednesday Bubble: Eating your way through the ‘pause

Posted by Liz on Sep 5, 2012 in diet, Uncategorized | 0 comments

I’ve written a lot about diet and maintaining a healthy weight , as well as impact on overall health as you age. And I will continue to do so as long as Flashfree is published. However, I have not written much on diet and how it affects symptoms, mostly because the evidence is pretty scant in that regard. Still, it has come up in conversations repeatedly and I feel that it’s time to at least broach the topic, especially since I discovered Dr. Akiko Sugahara, a Tokyo-based nutrition, anti-aging and women’s health specialist and her  book, Menopause Recipes for Health and Beauty.

When it comes to maintaining health, obtaining minerals and vitamins through dietary sources is always preferable although not always possible. And while I cannot vouch for anything that Dr. Sugahara has shared in her book, her publicist did reach out with an offer to let me share a few pages here. Draw your own conclusions; we do know that not all soy products are created equal, and that isoflavone benefits may vary as well. Still, Dr. Sughara’s message is health comes first, which is why I chose this particular section to reprint in part. Please note that in her ebook, Dr. Sughara actually provides 10 ideas, which I have condensed for space purposes. If you want to read more, do download her book on her Facebook page.

Thank you Dr. Sughara, for providing your words to this post.

A deterioration in your physical condition during menopause renders you more vulnerable mentally. In this section, we present concrete ideas that will help you to manage menopause skillfully and improve your physical and mental health.

Taking a closer look at your everyday diet and identifying the problems.
Food preparation at home can sometimes fall below standard once the children have grown up. Before you know it, you might find yourself snacking instead of eating proper meals, eating lots of precooked meals and instant foods from your local supermarket or eating out more than you should. Where your diet is concerned, it is well worth making that extra effort for the sake of your own health and that of your family.

To identify potential problem areas, let’s first itemize your food balance.
Fermented soybean products more effective than supplements

The effectiveness of isoflavone in alleviating menopausal disorders is often discussed on television, and the link between soybeans and isoflavone is now common knowledge. Daily consumption of raw tofu, dried tofu, fermented soybeans, boiled beans or other soybean products is essential in treating and preventing menopausal disorders. Soybean milk, for example, is a convenient source of such also chill your body somewhat, so it is best consumed as an ingredient in stews and other hot dishes. Fermented foods, such as miso and vinegar, are more readily absorbed by the body and therefore provide isoflavone with a stronger effect.

Constipation relief as the basis for menopause relief
Many women with severe menopausal symptoms suffer from constipation. This condition also renders its sufferers more sensitive to the cold, often contaminating the blood and preventing it from flowing smoothly. This in turn reduces the amount of oxygen reaching the brain, making you absentminded and unable to organize your thoughts to get things done. Curing constipation therefore restores the blood flow to your extremities, bringing back the warmth to your hands and feet. The most effective cure for constipation is a diet of foods rich in isoflavone and polyphenols and especially dietary fibre, and sprouted brown rice is a prime example of these. Be wary of long-term use of medicinal laxatives, since they cause body chills that are felt deep inside your body.

Combating obesity with foods in 5 colours
Menopause is often accompanied by weight gain. Overeating to console loneliness is a primary cause, and a healthy digestive system will readily convert any excess intake into fat. This often results in a shortage of essential B- group vitamins, which promote complete combustion of nutrients and improve rain function, making it difficult to burn stored body fat. To combat weight gain, you should reduce your consumption of sweets and fruit and increase your consumption of stews made from as many as possible of the ingredients in the five basic colours. If you are susceptible to weight gain, then a staple of sprouted brown rice and wholegrain bread and an appropriate amount of exercise are recommended. This alone should eliminate obesity, helping menopausal symptoms to disappear naturally.

Dried foods effective for chills and abdominal ptosis
Many women who suffer from chills also have abdominal ptosis, or drooping of the viscera. This condition causes a deterioration in the secretion of gastric acid, preventing the essential absorption of iron and copper. It also causes the stomach to become bloated, so fatty foods lose their taste, and at the same time it restricts the consumption of plain foods. Consequently, some women skip breakfast or lunch or eat too little generally, resulting in a diet deficient in protein, iron and vitamins. To make things worse, the greater sensitivity to the cold that accompanies this condition can cause insomnia. The solution is to eat lots of shellfish, prunes and other dried fruits, cooked foods with iron and copper-rich whole-fish dishes and fried liver and vegetables. To compensate for the reduced amount of stomach acid, perhaps it would be a good idea to also eat foods containing vinegar and hot Chinese-style dishes with flavoured vinegar or to use pickled Japanese apricots in your cooking.

Idea 5: Combating osteoporosis with dried foods and fermented foods
Female hormones strengthen the bones to mitigate the effects of bone aging. As the secretion of female hormones declines, more bone cells are destroyed than are produced, and osteoporosis soon sets in, leaving the bones thinner and more porous and brittle. One way of dealing with osteoporosis is to include calcium-rich small fish, dried foods and fermented foods in your diet and to walk between 30 minutes and one hour every day. Another is to compensate for the decline in female hormones by eating plenty of isoflavone-rich foods such as miso soup and fermented soybeans to prevent body chills. Whenever possible, it is preferable to cure yourself using your own efforts rather than relying on yourdoctor.