
Are Bagels the New Cigarettes?
- New research has shocking results about the dangers of carbs
- The one time in life it’s less dangerous to be a smoker
- One way to make better carb decisions for your health.
Dear Reader,
Many people experience the devastating effects of lung cancer during their lifetimes — either by firsthand experience or by it touching the lives of loved ones.
In fact, lung cancer is so common it’s the second most diagnosed type of cancer in America for both women and men. And it’s also the leading cause of cancer deaths, with 150,000 U.S. deaths expected in 2016.1
Often, we hear of people afflicted with lung cancer who have never smoked cigarettes a day in their lives.
Last week, researchers at the MD Anderson Cancer Center at the University of Texas released a study that may shed some scientific light on these mysterious smoke-free lung cancer cases.
And what is shocking — it has everything to do with bagels and birthday cake, not cigarettes.
Today, I will share with you one easy way to help you combat these cancer causers.
But first, let’s sort out what the study found.
The Glycemic Index : High Scores, High Risk
The research, published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research, shows that if you eat a diet of high-glycemic index (GI) foods, you are at a greater risk of developing lung cancer. And not just by a fraction — some folks experienced a 49 percent increased chance for lung cancer.1
The glycemic index indicates the quality of carbohydrates in a food and how quickly your blood sugar levels rise after eating it. The glycemic load measures the carbohydrate quantity.
Previous cancer research has investigated the link between glycemic index and glycemic load and the risk of numerous cancers.
This study furthered the research.
Lead author of the study and postdoctoral fellow at MD Anderson Stephanie Melkonian reports:
“Diets high in glycemic index result in higher levels of blood glucose and insulin, which promote perturbations in the insulin-like growth factors (IGFs).”
Let’s break this down further…
Insulin-like growth factors are different types of hormones that mostly stimulate growth but also have some ability to lower blood glucose levels. 2
The high levels of glucose found in in high-glycemic foods may cause IGF distress and could be what is leading to cancer cell growth.
Foods high on the glycemic index include those made with white flour and refined sugar, such as white bread as well as things like rice and breakfast cereals.
Since these foods are regular staples in many American homes, this may explain how some nonsmokers are now lung cancer cases.
The study examined the diet of approximately 1,950 patients with recent lung cancer diagnoses as well as 2,413 healthy people. All participants self-reported their diets, and then researchers evaluated their glycemic index accordingly.
The researchers found the end result. Xifeng Wu, senior author of the study and an epidemiology professor at MD Anderson, explains, “We observed a 49 percent increased risk of lung cancer among subjects with the highest daily GI compared to those with the lowest daily GI.”
What’s interesting is the glycemic load seemingly has no significant correlation with the risk of lung cancer. According to Wu, “This suggests that it is the average quality, instead of quantity, of carbohydrates consumed that may modulate lung cancer risk.”
Among those who smoke, lung cancer risk was raised by only 31 percent when consuming a high-glycemic index diet. This means the effects of the glycemic index are more apparent in the absence of a major risk factor like smoking.
“The results from this study suggest that, besides maintaining healthy lifestyles, such as avoiding tobacco, limiting alcohol consumption, and being physically active, reducing the consumption of foods and beverages with high glycemic index may serve as a means to lower the risk of lung cancer,” said Wu.
So there you have it, one easy way to help prevent cancer — avoid consuming foods high on the glycemic index.
Per the University of Sydney, carbs with a glycemic index of 55 or lower are more slowly digested, absorbed, and metabolized.
Foods like bagels and white bread have indexes between 70–95.
While it may be best to try to cut carbs out as much as possible, the University of Sydney also has a tool that can help you make more informed glycemic index dietary decisions.
You can access their online search engine, which provides glycemic index scores for many foods, here.
If you have any low-glycemic index diet tips, send them my way! nmoore@lfb.org
Live well,
Natalie Moore
Managing editor, Living Well Daily
Sources
[1] Dietary glycemic index linked to lung cancer risk in select populations
[2] Insulin-like growth factor (IGF)
[3] Is Green Squash Low Glycemic?

Written By Natalie Moore
Natalie Moore is a dedicated health researcher with a passion for finding healthy, natural, and science-based solutions. After a decade of direct healthcare experience in western and natural medicine, she was involved in public health research before joining Living Well Daily.
View More Free Articles
50-Cent Nutrient Puts the Brakes on Aging
Scientists discovered a remarkable “anti-aging” solution hiding in plain sight. It isn’t some exotic compound from a remote rainforest or an expensive laboratory creation. It’s a nutrient you can find at any pharmacy for less than the cost of a cup of coffee. The trouble is, most seniors aren’t getting enough of it, which researchers...
The Hidden Brain Risk Lurking in Your Living Room
If you’re reading this while settled into your favorite chair, you might want to consider standing up… New research uncovered something that might surprise you. Sitting too much can literally shrink your brain. But it gets worse… We all know being sedentary isn’t good for our health. However, researchers at Vanderbilt University uncovered something alarming....
“Biohack” Your Life Like a Billionaire?! Here’s How
You’ve probably seen the headlines about the billionaire who spent millions on “biohacking” to try to make himself younger. He measures hundreds of biomarkers and pops dozens of pills daily. And he’s undergoing experimental treatments that cost more than most folks’ houses. It may have left you wondering if regular people like you and I...
Do THIS Daily to Improve Strength, Flexibility, and Endurance
For any couch potatoes out there… I have some exciting news. If you’ve been avoiding exercise because you hate the gym or don’t have the time, that might be about to change. A groundbreaking study reveals how a few simple moves, done daily in your own home, could dramatically improve your fitness—even if you’ve skipped...
Mailbag: A Post-Prostate Cancer Blueprint for a Better Recovery
“My son just got his prostate removed because of cancer. He is doing well and recovering. My question is there any information you can forward with regards to his lifestyle? Are there things he should not eat, things he should be eating, is social drinking a risk, any vitamins that should be on his list?...
The Stroke-Boosting Threat Lurking in YOUR Arteries
We want to take a moment on this Memorial Day to honor the brave men and women who made the ultimate sacrifice in service to our nation. Their courage, dedication, and selfless commitment to protecting our freedoms will never be forgotten, and their legacy lives on in the country they helped preserve. I’ve warned you...
20-Minute AM Hack Will Revolutionize How You Wake Up
If you feel like you’re in a fog for the first hour after your alarm goes off, you’re not alone. Mornings can be rough. That groggy, disoriented feeling isn’t just annoying—it’s a real physiological phenomenon called “sleep inertia.” And it can drag on for up to two hours after waking, even if you’ve had a...
Weekly Habit QUINTUPLES Your Cancer Risk
Everyone knows that sugar-sweetened sodas aren’t going to win any nutrition awards. That’s not news. But now, a disturbing new study suggests these soft drinks hide a deadly secret. A regular soda habit could do far more damage than just expand your waistline or raise your diabetes risk. The new research reveals these sugary treats...
Unlikely Duo Naturally SLASHES High Blood Pressure
Some things just naturally belong together—such as peanut butter and jelly, salsa and chips, or two peas in a pod. But there’s an unlikely pair that researchers say could do wonders for your heart health. A comprehensive new study from the University of Surrey has revealed that compounds found naturally in tea and chocolate can...
The Surprising Link Between Jaw Tension and Anxiety
Ever catch yourself clenching your jaw when you’re stuck in traffic or waiting for an important phone call? Well, it might tell you something important about what’s happening “upstairs.” Turns out, that jaw tension isn’t just annoying—it’s a direct hotline to your anxiety levels. And most of us don’t even realize we’re doing it. I’ve...