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14 Superfoods to Lower Lung Cancer Risk

What are some foods that reduce the risk of lung cancer?

But wait.  Is it worth taking the time to check out these foods if you don’t smoke?  After all, isn’t lung cancer a smoker’s disease?

Hardly.  In fact, the majority of people who will develop lung cancer in 2016 are non-current smokers, meaning they have either quit smoking (former smokers) or never smoked in the first place.  There are more non-smoking women who die from lung cancer each year than non-smoking and smoking women combined from breast cancer.

  And even though you may have heard optimistic reports that lung cancer is declining, the news isn’t all so good.  Lung cancer is increasing significantly for one group: young, never smoking women.

There are many risk factors for lung cancer, some of which are avoidable, but that doesn’t mean you have to hide in a bubble.  There are actually some things you can addto your life to reduce your risk.  Certainly exercise has been shown to make a difference, but what you put in your mouth is important as well.  A diet rich in fruits and vegetables appears to have a protective role against the development of lung cancer.

If you have not had cancer, check out these foods and nutrients that may lower your risk of lung cancer.  If you already have lung cancer, don’t stop here.  Nutrients that may help prevent lung cancer might still be important, and in fact, some of the treatments for lung cancer can increase the risk of developing a second cancer.  But if you’re really looking for foods that will help you today, check out these lung cancer fighting foods which may help halt tumor growth or enhance the effects of cancer treatment.

Apples

Eating apples may reduce lung cancer risk. Photo Credit: Istockphoto.com/Stock Photo©-101PHOTO-
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

A large study published in Plos One found that the dietary intake of flavonoids — abundant in apples — was inversely proportional with lung cancer risk.  In other words, more was better.

The intake of total flavonoids, flavonols, flavones, and flavanones, as well as the flavonols quercetin and kaempferol was significantly associated with a decreased risk of smoking-related cancer.  For those who have never smoked, one of these compounds, called flavanones, also lowered risk.

While the entire apple is rich in these compounds, they are especially plentiful in the skins, so you may want to leave the peeler in the drawer.  Since apple skins are included in making apple cider, this may be a better choice than apple juice if you wish to consume your apples in liquid form.

Add an apple a day to try keeping the oncologist away, or try this recipe for mulled apple cider.

Garlic

Raw garlic may reduce the risk of lung cancer. Photo Credit: Istockphoto.com/Stock Photo©Amarita
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

In the past, it was thought that garlic had anticancer effects based on what researchers found in animals and the lab.  Recently, a study in China found that people who consumed raw garlic 2 or more times per week dropped their risk of lung cancer by 44%.

The key may be eating garlic raw, as the compound diallyl sulphide, thought to be responsible for these effects, is greatly decreased by cooking or pickling.

Garlic has been looked at for a possible role in health for treating high blood pressure, reducing cholesterol, and even warding off the common cold.

Try out this recipe for vegan garlic hummus loaded with raw garlic that even my kids (non-vegans) love.

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Broccoli

Broccoli and other cruciferous veggies may lower lung cancer risk. Photo Credit: Istockphoto.com/Stock Photo©AnjelaGr
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Cruciferous vegetables such as broccoli pack a big punch in the cancer reduction armory.

Compounds in cruciferous vegetables such as glucosinates were found to reduce the risk of lung cancer overall by up to 21 to 32%, especially in women.

If you don’t care for broccoli, don’t despair, as there are many alternatives.

Other veggies classified as cruciferous include:

  • cauliflower,
  • radishes,
  • arugula,
  • bok choy,
  • collard greens,
  • kale,
  • watercress,
  • horseradish,
  • brussels sprouts,
  • cabbage,
  • rutabaga,
  • wasabi, and
  • turnips.

Try out this recipe for sauteed broccoli with tomato, garlic and herbs, to combine 3 lung cancer fighting foods in one dish.

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Fish

Fish intake is linked with a lower risk of lung cancer. Photo Credit: Istockphoto.com/Stock Photo©Olha-Afanasieva
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Eating fish may have a protective role against the development of lung cancer.  A review and meta-analysis of studies performed up until 2012 found that high fish consumption was associated with a significant reduction in lung cancer risk; those who consumed more fish had roughly a 21% lower chance of developing lung cancer.

Of course, a reduction in lung cancer risk is not the only benefit of the omega-3-fatty acids in fish.

 It’s thought that these also aid in reducing the risk of heart disease, high blood pressure, and stroke.

Check out these 6 healthy ways to serve salmon.

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Red Peppers

Red peppers may lower lung cancer risk. Photo Credit: Istockphoto.com/Stock Photo©Givaga
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Red bell peppers as well as red chili peppers contain a phytochemical (plant based chemical) called capsaicin, part of what gives these foods a spicy little kick  It was found that capsaicin suppressed the development of lung cancer in Swiss mice that were exposed to a chemical which can cause cancer.  Capsaicin may do this by inducing apoptosis, that is, by eliminating abnormal cells before they can divide and become a cancerous tumor.

Capsaicin may also play a role in weight loss and lowering triglycerides.

Try this broccoli red pepper saute for a recipe which contains 4 foods on this list and can be prepared in only 10 minutes.

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Green Tea

Drinking green tea may lower the risk of lung cancer. Photo Credit: Istockphoto.com/Stock Photo©Kasaim
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Green tea may help with more than just lung cancer reduction.  In the Prostate, Lung, Colorectal, and Ovarian screening trial, a study which looked at nearly 100,000 people, green tea was associated not only with a reduction in the incidence of lung cancer, but of cancer overall.

Adding a touch of lemon may increase the absorption of important compounds in green tea, whereas adding cream (or other dairy products) may bind with these compounds and negate their positive effects.

Check out these hidden benefits of green tea along with these tips on how to brew green tea to get the most health benefit.

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Spinach

Spinach may lower lung cancer risk. Photo Credit: Istockphoto.com/Stock Photo©Lecic
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Spinach is rich in folate, a vitamin which was found to lower the risk of lung cancer in several studies, and in one, reduced the risk of lung cancer in former smokers by up to 40%.  Why is this important?  Currently around 60% of people who develop lung cancer are former, not current, smokers.  You can’t change habits you may have had in college, but a healthy diet today might make a difference.

In addition to cancer reduction, folate may play a role in preventing high blood pressure.

Spinach is also rich in the nutrient lutein, another lung cancer fighting compound.  Lutein acts as an antioxidant in the body, fighting off free radicals generated by cancer causing substances in our environment as well as normal metabolic processes in the body.

Try this spinach salad with apple vinaigrette to please your taste buds while combining more than one lung cancer fighting food, or check out this list of other foods high in folate.

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Chicken

Eating chicken instead of beef may lower lung cancer risk. Photo Credit: Istockphoto.com/Stock Photo©loooby
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Red meat, especially processed meats, have gotten a bad rap in recent years and the story continues with lung cancer.  A review of reliable studies to date found that red meat intake was associated with a 35% increase in lung cancer risk, but the opposite was true for chicken.

A high poultry intake was associated with a 10% decreased risk in lung cancer, while also being a good source of protein.

Try out this recipe for stir fried chicken with bell peppers or this Thai tamarind chicken stir fry.

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Onions

A diet rich in onions is associated with a lower risk of lung cancer. Photo Credit: Isockphoto.com/Stock Photo©volgariver
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Onions contain quercetin, a compound that appears to have an inverse relationship with the development of lung cancer.  In other words, a greater dietary intake of onions is associated with a lower risk of lung cancer.

In addition to cancer risk, quercetin may lessen chronic inflammation and decrease atherosclerosis.

Onions can be added to just about any casserole or soup, or fixed alone in a number of ways.

 Check out these 10 ways to use sweet onions.

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Wheat Germ

Consuming foods high in vitamin E is associated with a lower risk of lung cancer in female non-smokers. Photo Credit: Istockphoto.com/Stock Photo©Zb89V
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Wheat germ is one of the highest sources of vitamin E (alpha-tocopherol) followed by sunflower seeds and almonds.

In the Shanghai Women’s Health Study, a clinical study looking at over 72,000 Chinese female non-smokers, it was found that women who were exposed to high doses of sidestream smoke in the home and workplace were 47% less likely to develop lung cancer if they consumed a diet high in vitamin E (alpha-tocopherol.)

This study was also very important in demonstrating an important point.  Women who took a vitamin E supplement instead of consuming vitamin E in dietary form, actually had an increased risk of developing lung cancer.  It’s not certain why this is the case.  Perhaps there are as yet undiscovered compounds in foods containing vitamin E that are not present in supplements, or that for some reason taking vitamin E in tablet form acts in a different way in the body’s metabolism.  But this illustrates the importance of looking at diet as an avenue to a healthy lifestyle, rather than relying on supplements alone.

Add some wheat germ to your breakfast, or try this broccoli sunflower seed salad.

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Butternut Squash

Foods high in beta-cryptoxanthin such as butternut squash may lower the risk of developing lung cancer. Photo Credit: Istockphoto.com/Stock Photo©OLEKSAMDR PERPELYTSIA
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

Butternut squash contains a substance called beta-cryptoxanthin that has been found repeatedly to lower the risk of lung cancer.  The decrease in risk is on the order of 15 to 40% depending upon the study, for those with the greatest dietary intake of this compound.  While some studies showed greater effects than others, a diet rich in foods containing this substance appears to be particularly helpful for people who smoke.

 Again, as with vitamin E, those who attempt to get this ingredient via a supplement may have an increased rather than decreased risk of developing lung cancer.

In addition to playing a role in lung cancer reduction, beta-cryptoxanthin may play a role in reducing arthritis.  Beta-cryptoxanthin may also be found in tangerines, persimmons, and the spices cayenne pepper, paprika, and chili powder.

Try out this perfect butternut squash soup recipe.

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Spice up Your LIfe

Spices such as rosemary and oregano may lower the risk of lung cancer. Photo Credit: Istockphoto.com/Stock Photo©klenova
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

We’ve talked about many foods which could help reduce the risk of lung cancer, but so far have left out one very important component of a cancer fighting diet: spices.

It’s been found that Mediterranean spices such as rosemary, sage, parsley, and oreganonot only have several health benefits, but are inversely related to the risk of developing lung cancer.  These spices contain a compound called carnisol which attacks several of the pathways needed by abnormal cells to become cancerous.

Learn more about how to spice up your healthy eating.

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A Rainbow of Foods

More variety in food leads to lower lung cancer risk. Photo Credit: Istockphoto.com/Stock Photo©Viktar
Written or medically reviewed by a board-certified physician. See About.com’sMedical Review Policy.

You may have heard that it’s wise to eat a rainbow of foods, and studies confirm that eating a variety of foods is important for good health.

Researchers studied the intake of foods among a large group of people, and found that the variety of foods made a difference in lung cancer risk.  Those eating a greater variety of foods had a significantly lower risk of developing squamous cell lung cancer, a type of non-small cell lung cancer.

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