Comedian and former The Daily Show host Jon Stewart, along with his wife, Tracey Stewart, are both committed vegans, which means that they follow blant-based diets and steer clear of animal products. Now, the couple has officially backed a campaign called Lets Beat Breast Cancer, which encourages women to stave off breast cancer by following a vegan diet (eating plant-based foods), limiting their alcohol intake, exercising often, and maintaining a healthy weight.

Three of these prongs to the approach are more or less uncontested. Few would argue with Stewart and the over 12,000 doctors and dietitians in the Physicians Committee for Responsible Medicine (the group that established the campaign) about the benefits of diet, exercise, and moderate alcohol consumption.

But what about the plant-based part? Is it true that eating a vegan diet can decrease your breast cancer risk? Experts have told SurvivorNet that the evidence is clear: fruits, veggies, whole grains, and plant-based proteins such as lentils, beans, and soy can help prevent cancer. Thats because these foods are part of an anti-inflammatory diet, which reduces inflammation that could eventually lead to cancer.

Krista Maruschak, a registered dietitian at the Cleveland Clinic Cancer Center, previously told SurvivorNet about how the anti-inflammatory diet decreases cancer risk. Inflammation in the body can cause a whole host of health conditions and co-morbidities, she said. And inflammation is really increased by refined carbohydrates, like white breads, white pastas, white rice, sweet desserts, as well as high fat, saturated fat, and meats like red meat [and processed meat].

Additionally, according to the Physicians Committee for Responsible Medicine backing the campaign that Jon Stewart just joined, Healthful foods from plants(vegetables, fruits, whole grains, and beans) lower breast cancer risk in several ways. They help with weight loss, because they are typically low in calories and high in appetite-taming fiber. In addition, high-fiber, low-fat diets can help you gently reduce estrogen levels. In turn, lower estrogen levels can lower your risk of cancer.

One of the plant-based foods that the campaign really encourages women to eat more of is soy which is full of healthy protein and protective substances called isoflavones. Soy is also really versatile and easy to add to your diet (tofu and soy milk, for instance).

Krista Maruschak spoke with SurvivorNet about how soys bad rap is unwarranted.

Interestingly, for a lot of women who have heard that soy contains estrogen, this may sound counterintuitive (because estrogen can fuel certain types of breast cancer). But according to Maruschak, the type of estrogen found in soy plant estrogen is completely different than the type of soy inside our bodies. Soy does not cause breast cancer, she reassured SurvivorNet. Even if somebody has an estrogen-positive breast cancer, we stil recommend that they can have up to three servings of whole soy products a day. Whole soy products can be incorporated into a healthy diet and should be incorporated into a healthy diet as a plant-based protein source.

RELATED:Major Reduction in Cancer Risk by Following Old Standbys Diet and Exercise

As soon as the Lets Beat Breast Cancer Campaign launched and Jon Stewart and several other celebrity names stepped up to support it, pro-vegan groups, including the vegan news site, Veg News, stepped up to champion the campaign. Vegans of course, exclusively eat plant-based foods and tend to steer clear of meat and animal products altogether.

RELATED: Meat is Not the Enemy

But cutting out from your diet entirely, its worth noting, isnt necessary to reduce your risk of breast cancer (or really any cancer). According to Maruschak, lean meats such as turkey and fish as well as animal products like eggs are actually part of that good-for-you anti-inflammatory diet she mentioned.

RELATED: Even Moderate Amounts of Red Meat Can Sharply Increase Risk Of Colorectal Cancer, New Study Finds

The problem with meat lies in the way its processed or cooked. The evidence is clear that too much charred meat, red meat, or processed meat such as sausages and hot dogs can up your cancer risk (even as headlines this past week said otherwise).

RELATED:The Evidence Says Red and Processed Meat Carries a Cancer Risk Even As TV Host Piers Morgan Endorses Bacon is Safe Headlines

Dr. Stephen Freedland,the Director of the Center for Integrated Research in Cancer at the Cedars-Sinai Medical Center,told SurvivorNetthat while meat itself isnt the enemy, the way that we process and cook our meats can cause cancer. TheWorld Health Organization, its worth noting, classifies processed meat as a carcinogen (meaning cancer-causing) to humans.

Learn more about SurvivorNet's rigorous medical review process.

Comedian and former The Daily Show host Jon Stewart, along with his wife, Tracey Stewart, are both committed vegans, which means that they follow blant-based diets and steer clear of animal products. Now, the couple has officially backed a campaign called Lets Beat Breast Cancer, which encourages women to stave off breast cancer by following a vegan diet (eating plant-based foods), limiting their alcohol intake, exercising often, and maintaining a healthy weight.

Three of these prongs to the approach are more or less uncontested. Few would argue with Stewart and the over 12,000 doctors and dietitians in the Physicians Committee for Responsible Medicine (the group that established the campaign) about the benefits of diet, exercise, and moderate alcohol consumption.

Krista Maruschak, a registered dietitian at the Cleveland Clinic Cancer Center, previously told SurvivorNet about how the anti-inflammatory diet decreases cancer risk. Inflammation in the body can cause a whole host of health conditions and co-morbidities, she said. And inflammation is really increased by refined carbohydrates, like white breads, white pastas, white rice, sweet desserts, as well as high fat, saturated fat, and meats like red meat [and processed meat].

Additionally, according to the Physicians Committee for Responsible Medicine backing the campaign that Jon Stewart just joined, Healthful foods from plants(vegetables, fruits, whole grains, and beans) lower breast cancer risk in several ways. They help with weight loss, because they are typically low in calories and high in appetite-taming fiber. In addition, high-fiber, low-fat diets can help you gently reduce estrogen levels. In turn, lower estrogen levels can lower your risk of cancer.

One of the plant-based foods that the campaign really encourages women to eat more of is soy which is full of healthy protein and protective substances called isoflavones. Soy is also really versatile and easy to add to your diet (tofu and soy milk, for instance).

Krista Maruschak spoke with SurvivorNet about how soys bad rap is unwarranted.

Interestingly, for a lot of women who have heard that soy contains estrogen, this may sound counterintuitive (because estrogen can fuel certain types of breast cancer). But according to Maruschak, the type of estrogen found in soy plant estrogen is completely different than the type of soy inside our bodies. Soy does not cause breast cancer, she reassured SurvivorNet. Even if somebody has an estrogen-positive breast cancer, we stil recommend that they can have up to three servings of whole soy products a day. Whole soy products can be incorporated into a healthy diet and should be incorporated into a healthy diet as a plant-based protein source.

RELATED:Major Reduction in Cancer Risk by Following Old Standbys Diet and Exercise

As soon as the Lets Beat Breast Cancer Campaign launched and Jon Stewart and several other celebrity names stepped up to support it, pro-vegan groups, including the vegan news site, Veg News, stepped up to champion the campaign. Vegans of course, exclusively eat plant-based foods and tend to steer clear of meat and animal products altogether.

RELATED: Meat is Not the Enemy

But cutting out from your diet entirely, its worth noting, isnt necessary to reduce your risk of breast cancer (or really any cancer). According to Maruschak, lean meats such as turkey and fish as well as animal products like eggs are actually part of that good-for-you anti-inflammatory diet she mentioned.

RELATED: Even Moderate Amounts of Red Meat Can Sharply Increase Risk Of Colorectal Cancer, New Study Finds

The problem with meat lies in the way its processed or cooked. The evidence is clear that too much charred meat, red meat, or processed meat such as sausages and hot dogs can up your cancer risk (even as headlines this past week said otherwise).

RELATED:The Evidence Says Red and Processed Meat Carries a Cancer Risk Even As TV Host Piers Morgan Endorses Bacon is Safe Headlines

Dr. Stephen Freedland,the Director of the Center for Integrated Research in Cancer at the Cedars-Sinai Medical Center,told SurvivorNetthat while meat itself isnt the enemy, the way that we process and cook our meats can cause cancer. TheWorld Health Organization, its worth noting, classifies processed meat as a carcinogen (meaning cancer-causing) to humans.

Learn more about SurvivorNet's rigorous medical review process.

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Committed Vegan Jon Stewart Believes More Women Should Eat a Plant-Based Diet To Prevent Breast Cancer What Are The Facts? - SurvivorNet