Showing posts with label studies. Show all posts
Showing posts with label studies. Show all posts

Monday, June 29, 2009

Those simple carbs may be hurting your ticker


Photo source: lusi


Reprint from Examiner


Many people spend a good part of their days counting calories, limiting fat intake and exercising until they collapse from exhaustion. The reason for all this torture is to prevent heart disease and live a long, happy, healthy life. For most though, just putting yourself through all that nonsense is enough to make you wish yourself into an early grave. The saddest part is that studies are consistently showing that it’s not only unnecessary, but probably counterproductive. The standard American diet (SAD) is high-carb and low-fat in nature and has yet to be proven the most effective or the healthiest option.

A study conducted by Dr. Michael Shechter and colleagues, of the Leviev Heart Center in Israel, set out to learn the effects of a glycemic- index dietary carbohydrates on the arteries. To accomplish this they assessed 56 men on four separate mornings, one to two weeks apart. After an overnight fast, each subject was examined and then fed one four meals to gauge the effect of said meals to the arteries.

The meals consisted of cornflakes, glucose, high-fiber cereal and a placebo (water) and were served in a rotating randomized fashion so that the subjects received all four meal types. They found that fasting blood glucose levels were the same in all patients, but rose significantly after the glucose and cornflake meals compared to the high-fiber and placebo meal. The result shows that high-gylcemic carbohydrate consumption (AKA sugar, starches and other junk low-carbers avoid) may enhance the risk for cardiovascular disease.

(My notes: I would have loved to see this compared to say, bacon and eggs. I would have also loved to see this study continue for a while, with repeated meals to be sure results were accurate and not circumstantial. As you know, I like longer studies and more through research, but at least this is being looked into.)

Thursday, May 22, 2008

Coca-Cola and Cargill Announce New All-Natural Sweetner



For those of you who have been hoping for the day Stevia would be available as a sweetener for your favorite foods and beverages, your wait is almost over.

I was honored to be invited to a webinar held by Coca-Cola and Cargill to discuss this latest breakthrough in sweeteners.* The presentation was informative and encouraging, and I'm happy to share with you what I've learned.


Three panelists were in attendance to explain the latest research and development of the first natural, zero calorie sweetener, which they have named Truvia (TM) (pronounced Tru-VEE-a). The experts on this panel were Leslie Curry, who is the Regulatory and Scientific Affairs Director for Cargill Food and Ingredient Systems, Dr. Rhona Applebaum who is Vice President and Chief Scientific and Regulatory Officer for The Coca-Cola Company, and Zanna McFerson who is Business Director for Cargill Health & Nutriton.


First, a short stevia history lesson...

  • Stevia was discovered in 1887 by Moises Santiago Bertoni while studying herbs used by Guarani natives in Paraguay.

  • In 1931 French food chemists isolate the compounds (glycosides) that give stevia it's sweet taste.

  • In 1977 Japanese consumers begin enjoying foods and beverages sweetened with stevia.

  • FDA permits use of stevia in dietary supplements in the U.S. in 1994.

  • In 2005 the Coca-Cola Company and Cargill develop rebiana.

  • In 2006-2008 Cargill works with leading external scientists and consults with the FDA to establish the safety of rebiana.

  • 2008 - Truvia (TM) is introduced.



    So you can see that stevias journey from Paraguay to, very soon, our tables has been a long one.

    You may have noticed that I mentioned something called rebiana earlier. Stevia is a mixture of all components of the stevia leaf - including those that do not have a sweet taste. Rebiana, on the other hand, is a high purity, well-characterized extract from stevia leaves and is 200 times sweeter than sugar. Leaves from the stevia plant are harvested and dried, then steeped in fresh water in a process similar to making tea. This unlocks the best-tasting part of the leaf, which they then purify to make a food-grade sweet ingredient.


    Now all these little tid-bits of info are all well and good, but you want answers to the big questions. Is it safe? When can we get it? Will it be in foods and beverages? How does it affect blood sugar? I happy to say Coca-Cola and Cargill have provided answers to these questions.

    In a study, which was published in the Food and Chemical toxicology Journal on May 15th, Cargill enlisted leading external scientists, and consulted with the FDA, to design and conduct a rigrous safety evalulation program for rebiana. The program objectives were as follows:

    - To ensure data on stevioside are relevant to rebaudioside A
    - To Resolve outstanding questions. Example: Possible effects on blood pressure/sugar, reproductive health and kidney function.

    Study details:

  • Intake assessment and methodology: Estimated intake of rebiana for average and high consumers was calculated using extensive databases/studies of actual high-intensity sweetener intakes.

  • Phramacokinetics and metabolism: Designed to determine whether rebiana is metabolized in the same manner as stevioside, which is almost identical in structure.

  • General safety: Study that tested safety of rebiana at very high doses.

  • Multigenerational/reproductive safety: Study assessing reproductive and developmental impact of rebiana at very high doses.

  • Blood pressure: 4-week clinical study in people with normal to low-normal blood pressure.

  • Glucose homeostasis: 16-week clinical study in people with type 2 diabetes.

    The clinical studies have all been placebo controlled, randomized double-blind studies conducted in compliance with good laboratory practices.



  • The results:


    Metabolism studies - Metabolism of rebaudioside A is similar to that of stevioside
    - Extensive toxicology data on stevioside can be applied to rebiana. (the safety or rebiana is supported by a large body or research on purified steviol glycosides.)

    General safety - No negative effects on general health associated with daily consumption of the equivalent of more than 2,000 8-oucse servings of rebiana-sweetened beverage for a 150 lb person.

    Mulitgenerationsl/reproductive safety - Daily consumption equivalent to a 150 lbs person drinking more than 1,000 8 ounce servings of a rebiana-sweetened beverage had no negative effects on general health, reproduction, growth or development of adults or their offspring.

    Chronic Blood pressure study - Daily consumption of 1,000 mg/day or rebiana - the equivalent to consumting 29 tabletop sweetener packets a day or eight 8-ounce servings of rebaiana-sweetened beverage - for four weeks had no significatn blood pressure effects in the healthy subjects with normal or low-normal blood pressure.

    Chronic blood sugar study - Consumption of 1,000 mg/day of rebiana for 16 weeks did not affect blood sugar control and was well-tolerated in people with type 2 diabetes.



    They believe this clearly establishes the safety of rebiana for use as a general purpose sweetener for all consumers.

    At the end of the webinar they had a short Q and A for those attending. Many had the same questions we do. Since the issue of safety has been resolved, lets move on the the next question:

    Do you anticipate FDA approval in foods and beverages? If so, when?
    According to Leslie Curry, they have notified the FDA of the findings. So I guess that means they'll have to wait and see. I do get the feeling they feel assured it will go through, due to the answer to this next question.

    When will the product be available for consumers?

    Zanna McFerson tells us to expect it this year in the U.S. as a table top sweetener, followed by Truvia (TM) in foods and beverages.

    When will Truvia (TM) be available in Coca-Cola beverages and other beverage companies?
    Coca-Cola can only speak for themselves, but cannot discuss the timing due to competitive reasons.

    What are the sweeteners limitations? Can you cook with it?

    It can be used across a wide variety of applicatons. It's PH and heat stable - so it can be baked with. (My note: Whoo Hoo!!!)

    Zanna McFerson made the remark that they have "had great reviews from consumers around the world and expert panels and taste tests."

    To learn more about this innovative new product you can visit the following websites:

    All About Rebiana

    Truvia

    So there you have it! A new choice for those who may be looking for more natural alternatives for sweetening their foods and beverages. Keep an eye out for it. I have the feeling we'll be seeing it very soon, and I can't wait to try it!



    *I was unable to attend due to other obligations, but listened to the entire webinar later.

  • Tuesday, October 02, 2007

    High-fat diets and Cancer

    I promise this isn't one of those posts that start linking red-meat as the cause of cancer. :0) It's actually quite the opposite!

    I just read this exciting article titled Can a High-Fat Diet Beat Cancer?

    From the article:

    Since early 2007, Dr. Melanie Schmidt and biologist Ulrike Kämmerer, both at the Würzburg hospital, have been enrolling cancer patients in a Phase I clinical study of a most unexpected medication: fat. Their trial puts patients on a so-called ketogenic diet, which eliminates almost all carbohydrates, including sugar, and provides energy only from high-quality plant oils, such as hempseed and linseed oil, and protein from soy and animal products.



    The next sentence has me rolling my eyes...

    What sounds like yet another version of the Atkins craze is actually based on scientific evidence that dates back more than 80 years.


    Uh.. excuse me? This is not another version of the "Atkins craze" This basically IS Atkins!!! Granted, Atkins doesn't use plant oils in place of actual veggies, but you see the connection here. Don't you just love it when journalists throw this kind of rhetoric in?

    The rest of the article is very interesting and certainly renews my determination for me and my family to avoid high-carb, sugar-laden foods. And the good news is that it sounds like the research on this will not stop here! Others are jumping on the bandwagon and investigating the possible benefits that cancer patients can receive from low-carb high-fat diets. While I'm not surprised at their findings, I'm certainly glad to see that others are taking a second look. It looks like we may actually getting the message out there! So let's keep spreading the word! :0)

    Tuesday, July 31, 2007

    A few good reads for today....

    Weight loss

    First a quick update: I'm down another lb, which leaves only a lb to go before I'm back at 161.4. Curse those chips!

    We had dinner with friends last night and they started asking me about my diet. I explained how low-carb works, etc. They didn't look sold when I was finished, but I know the results I'm having speak for themselves. About 9:30 last night they called me from a Wal-Mart Super Center asking me what they should buy to start the diet. :0)

    I gave them a quick rundown and told them I'd bring them my copy of DANDR (Dr. Atkins New Diet Revolution) and some copies of my favorite recipes. Keep your fingers crossed that they can get through the induction phase, which is the hardest part.


    Links

    Today will be another busy day, so I thought I'd just share a few articles of interest. I don't have time to give my detailed thoughts on them as I'd like to, so just read and enjoy. And feel free to leave any thoughts you have on these articles in the comment box!

    "Good Carbs" Yield New Found Benefits
    Again, nothing new under the sun...

    More Evidence Favors Low-Carb Diets
    My favorite quote from the above article:

    Taken as a whole, the evidence suggests that carb-control offers considerable potential as a weapon in the battle of the bulge.

    Amen Dr. Briffa!

    After reading this article I decided to look at his blog: Dr. Briffa - A good look at health

    I don't the time today to read in detail, but I'll definitely be going back to see what he has to say. It does look promising! I'll let you know my thoughts on this blog in a future post.

    "Healthy" Foods May Not Be
    I think I've posted this before, but the warning bears repeating. Do more than look at the nutrition labels... read the ingredients labels as well! (No that can't "fix" this problem, but it will help you spot those things that just don't seem to add up. You can also use the hidden carb calculator on my site to check things out.)


    Words of Wisdom


    A photographic memory is of no use if it's never developed.


    OK.. I need to get busy. Have a great day

    Wednesday, July 25, 2007

    This is big news?

    Low-Carb Diets Combat Metabolic Syndrome

    I guess it is to people who have had their head buried in the sand. Low-carbers have known this for years. We live it.

    I'm glad to see that a study was done, however small it may be. And these participants got good results even though they didn't follow it as the study suggested! How much better it would have been had they followed it to the letter!

    Of course they always have to have the "doubter" in the article somewhere. Sadly, this one comes from right here in St. Louis. I'll give her credit though.. she isn't outright saying the whole study should be dismissed. She's just saying that it may not apply to everyone. She seems to think it might not work for those who do not have metabolic syndrome. I disagree! I know many who do not suffer from metabolic syndrome, and they are doing excellent on a low-carb diet.

    I can't wait to see what "surprises" them next....

    Thursday, March 15, 2007

    Healthy Habits Combat Childhood Obesity


    In the past, when someone thought of obesity, a child was rarely the first thing to come to mind. Children were highly active little creatures who never seemed to slow down. I can count on one hand the overweight children I grew up with.

    Sadly, times have changed. According to the National Center for Chronic Disease and Health Promotion, "The prevalence of overweight among children aged 6 to 11 more than doubled in the past 20 years, going from 7% in 1980 to 18.8% in 2004. The rate among adolescents aged 12 to 19 more than tripled, increasing from 5% to 17.1%."

    Wow. Those are some scary numbers! Obesity, in itself, is an awful thing to deal with as a child. While most adults have the tact and manners to be, at the least, polite to a person who is overweight, children can unknowingly be quite cruel. Taunting, name calling, bullying, and exclusion are just a few of the afflictions an overweight child will suffer through on a daily basis. But there is much more at stake here than self-confidence. With obesity comes deteriorating health. This isn't just an issue for adults. Children can suffer from diabetes, cancer, heart disease, depression and a myriad of other problems. In fact, a recent study in the Journal of the Academy of Pediatrics discovered that overweight girls tend to hit puberty earlier than normal, which can lead to serious health concerns.

    So what is the best way to tackle this growing problem? One word. Prevention.

    As parents, educators, and role models, we need to be sure our children are receiving the proper messages about what is and is not healthy. In a society that becomes more confusing with each passing day, we MUST be the clear voice of reason. We can not leave children to their own devices and decisions about what is good for them.

    So how do we successfully convey the message of healthy living to our children? TODAY nutritionist Joy Bauer has few suggestions and shared them in this article titled 10 Ways To Keep Your Kids From Getting Fat.

    She had some great suggestions which I’d like to highlight here.

    Number one on Joy’s list is being a healthy role model. Children tend to want to be just like Mom or Dad. If they see you eating potato chips, all the while you’re telling them they should eat fruits and vegetables for snacks, which do you think they’ll chose? Children look up to their parents, not only as heroes, but for guidance. Make sure you practice what you preach, or it will never sink in. As an example, my daughter started watching what I ate very closely when I started my low-carb plan. Now she no longer eats the bun on her Arby’s sandwiches. She says it’s good for her and tastes better that way.

    Joy also mentions making healthy food choices fun. Games, taste tests - get creative! I know from personal experience that letting your children help with meal preparation works wonders. While my son will eat anything that isn’t nailed down, my picky daughter won't touch certain foods. One day I asked her to help me cook dinner. The next thing we knew, she was announcing, with pride, that she’d cooked the broccoli and everyone should try it because it is delicious. Of course this meant she’d have to eat some too. Rarely has she made something she didn’t like, once she tried it.

    Another idea Joy mentions is using her 90/10 food strategy, which constitutes 90% healthy choices and 10% junk. I don’t deny my kids the “fun” foods. How hard would it be for a child to attend a birthday party and not get any cake or ice cream? But I also do my best to limit the poison, in the form of simple carbs, they ingest. I don’t want them to develop the carb addictions I’ve battled for so many years.

    Suggestions number four, six, seven, and eight involve feeding them a healthy breakfast, loading them up on fiber, limiting starchy veggies, and keeping healthy veggies on hand at all times.

    I do take issue with her fifth suggestion, which recommends switching children over to non-fat and low-fat foods after the age of two. Her specific example was milk, cheese and yogurt. She subscribes to the common food pyramid belief that the lower-fat counterparts will be a better choice because of the caloric content. I simply cannot go along with that line of thinking. I rarely allow my children to have anything labeled low-fat. Most of the time a low-fat label can be translated to read: "conatins sugar or high fructose corn syrup". Those are two items I prefer my children cut way back on. And don’t think for a minute that children react to carbs any different than adults. My daughter can, and will, eat candy until she’s sick. She can’t seem to help herself. Where if I set a plate of veggies and meat in front of her, she’ll eat until she’s satisfied and then stop. Another thing to consider is the satiety factor. Which item do you think kids will be more likely to overeat – skim milk or whole milk? Odds are the whole milk will make them feel full much faster, due to the fat content, and they will drink less. Fat is not the enemy.

    Her ninth suggestion discourages drinking empty calories. I couldn’t agree more. Thankfully she isn’t suggesting fruit juice as an alternative to sugary sodas.

    While a healthy diet is a huge factor in preventing obesity, there is one more element that is crucial to staying healthy. Joy addresses this in the last tip, which I’ve quoted below...

    “Encourage daily exercise

    Get you kids moving and keep them moving – aim for an hour each day. Limit the TV and video games …. and encourage after school sports, bike riding, long walks, jumping rope, hide and seek, rock hunting…anything goes.”


    Here is where I personally feel a majority of the guilt lies. With the progress of technology, we have seen children’s entertainment rapidly morph into a state of sedation. Children can be found all over the world in a vegetative state, watching the latest TV program, playing the latest video game, surfing the net. How many of today’s kids do you know that have ever played kick the can? I fear that not only are we raising a generation of couch potatoes, but worry that the imaginations of many children have stagnated. We need to do more than encourage activity. We need to encourage imaginative thinking. A child is much more likely to participate in something that involves their mind and body. Again, this is my personal observation based on my experience as a mother, and for several years, a pre-school teacher. I can’t provide research to back this theory up, but I believe I’m on target here. Children love a good challenge!

    So while we work on improving our own health, let’s make sure we are focusing on the health of our children as well. Just a little extra effort can make a big difference. And aren’t our children worth it?

    Wednesday, March 07, 2007

    Sore losers...


    Boo Hoo, cry me a river. Here's a tissue...

    Ya know, there is nothing worse than a sore loser. They whine about how unfair something is or they talk about lack of equality. Just suck it up and admit you didn't come out on top this time! Why am I talking about this? Because of this article on Yahoo. By now I'm sure you've heard all about the JAMA study comparing diet plans and their effectiveness. As great as that is, I don't want to talk about it. You can find plenty of wonderful and informed blog posts on that topic. What I want to discuss is the whining by the other diet creators. Such as...

    The study "had a good concept and incredibly pathetic execution," said Zone diet creator Barry Sears.



    There may be a measure of truth in this complaint. I wasn't there to see how they conducted this study so I can't say he's completely off base. But it's still sounds like whining. This study seemed to be based on how things happen in the real world. We can't have a dietitian watching our every move to make sure we follow the plan to the letter. It's not realistic.

    It's a lot easier to follow a diet that tells you to eat bacon and brie than to eat predominantly fruits and vegetables," said Dr. Dean Ornish, creator of the Ornish diet.


    As for Ornish.. ugh. Where do I begin? First, he obviously is still determined to fabricate the myth that Atkins is not about fruits and veggies. He is spouting the same old lies about Atkins being an all meat and cheese diet. Second, he's admitting that Atkins is easier to follow, which frankly cracks me up. Mr. Ornish is 100% correct and this is probably the only time I've ever agreed with him. As has been mentioned a bazillion times, protein and fat fill you up and keep you satisfied. THAT is why it's easier to stick with a low-carb plan. So.. would you like a little cheese with that whine Mr. Ornish? Oops.. for give me. I forgot. You think cheese is evil. How about some tofu then.

    Shouldn't everyone be happy that we are learning what may or may not help literally millions of obese people across the globe? Yes.. regardless of the findings, curing disease and helping people regain their health should be the number one concern. Why do these other diet gurus care so much that their plans didn't make the top rating? I can sum it up in 5 letters: M-O-N-E-Y. If a study comes out saying this is the best way to do something, people run like lemmings to try it. They know that most people won't do their own research and therefore will be influenced by the latest headlines. This means less book and product sales for them. I wouldn't be surprised if we see another mini low-carb craze for a while. I just hope this time people will actually read the books, educate themselves and do it correctly.

    I'll be the first to admit that low-carb isn't for everyone. There is no one-size-fits-all diet plan. We have to find what works for us and make it happen. While I felt awful on a low-fat diet, and yes I'll complain about what I went through now and again, I do not condemn those who use low-fat to take care of themselves. All we want, as low-carbers, is the same respect that is given to other diet plan followers and acknowledgement of our specific health needs. Is that really too much to ask?

    OK.. now I'm whining. Pass me those tissues.

    Tuesday, March 06, 2007

    The proof is in the pudding!!!

    OK, I really shouldn't be on here again. I have soooo much to do. But I just couldn't help but share this. I'm a regular reader of many blogs and I just found a great post on Dana Carpender's blog.

    A new study by the Journal of American Medical Association is now showing that Atkins is actually the best way to lose weight. You can read about it by clicking here. Now this is no big surprise to us, but maybe, just maybe, we will finally start seeing some positives in the media about this way of life. I'm not gonna hold my breath, because I know how stubborn some people can be. But hey.. it's a start, right? This certainly isn't the first study that confirms this, but this one is getting loads of attention.

    I was a participant in the CCARBS study that just finished up a couple of months ago. It was great to be a part of such a ground breaking study and I can't wait to see what the findings are.

    Keep your eye out for more great studies that prove you can succeed with Healthy Low-Carb Living!