Everywhere you look nowadays, you’re likely to find someone extolling the many health benefits of the “green superfood” kale.
Nutritionists call it one of the healthiest and most nutrient-dense plant foods on Earth – and yes, it is rich in vitamins and minerals such as manganese, potassium, calcium, and magnesium. Kale is also chock-full of health-giving, anti-aging antioxidants, including vitamin C, quercetin, kaempferol, and beta-carotene.
Further, kale contains substances known as bile acid sequestrants, which can bind to bile acids in our gut and prevent them from being reabsorbed, thereby reducing the total amount of cholesterol in our system and potentially lowering our heart disease risk.
Most exciting of all, though, kale and its other cruciferous relatives – including broccoli, cabbage, cauliflower, Brussels sprouts, turnips, kohlrabi, bok choy, and radishes – also contain natural compounds with protective effects against cancer.
One of these is sulforaphane, which has been shown to help fight the very genesis of cancer in laboratory experiments, including in animals.
Another is indole-3-carbinol (I3C), which has also been experimentally shown to help prevent cancer.
I3C is made in our gut when cruciferous vegetables including kale and broccoli are digested – and a recent laboratory study published in the scientific journal Immunity shows that I3C reduces gut inflammation, helping to lower our risk of developing colon cancer.
In a recent study, genetically modified mice were fed a diet rich in I3C, which has been shown to activate a protein known as aryl hydrocarbon receptor (AHR). AHR acts to lower inflammation and lowers the risk of developing colon cancer.
The mice used in this study had been genetically engineered so that they were unable to make or activate AHR by themselves in their guts. Naturally, they readily developed gut inflammation which progressed to colon cancer. However, when study researchers fed the very same mice a diet enriched with I3C – which triggered AHR formation and activation in their guts – then they did not develop either inflammation or cancer.
Not only that, when mice with already developing tumors were switched to the I3C-enriched diet, they ended up with significantly fewer tumors, which were also more benign and less dangerous.
In other words, our diet has a profound effect on the level of inflammation in our gut and on our chances of getting colon cancer. While environmental and genetic factors may also play a role in the likelihood of our developing cancer, what this study shows is that eating locally sourced, non-irradiated and non-GMO plant-based foods such as kale, broccoli, and other cruciferous vegetables can be a very effective form of prevention.
Unfortunately, we can’t change the genes we’ve inherited from our parents that might predispose us to various diseases, including cancer. However, we know that based upon the science of epigenetics, we can change the expression of those genes and greatly reduce our risk by regularly consuming a diet rich in vegetables and fruits, which has been previously shown to lower the likelihood of multiple cancers, especially those affecting our digestive tract.
Editor’s Note: This article was initially published in September 2018 and was updated in July 2021.
Thank you Ty.
Would LOVE to see a cookbook put out by the TTAC. 😊👍
Thanks for the suggestion Lori! We will definitely keep it in mind.
I eat brussel sprouts, kale, broccoli, cauliflower, and collard greens every Sunday because I feel that I should have servings of cruciferous vegetables. I actually prefer those vegetables notwithstanding brussel sprouts raw than cooked because I feel that cooking gets rid of its nutrients and essential vitamins.
My Mom is a Stage 4 cancer, gallbladder was removed and did radiation, too bad I did not know The Truth About Cancer. Oncologist wants to give her chemotherapy but we are going to decline.
At the moment my Mom is weak, does not want to eat. Not certain what to do do get her appetite back. Medical Dr. and Oncologist of course recommend ensure. I threw that away in the garbage. Can anyone help me as to how I can get her to eat? I give her most of Ancient Nutrition supplements but I’m not seeing and improvement.
Please help. Thank you
I’m so sorry to read about your mum’s illness. With stage 4 she could live many years with the help of things like IV vitamin C and/or IV ozone. Mistletoe can help, and actually even if she was to have chemotherapy using IV vitamin C from someone who knows how to administer it and in the correct dose can greatly enhance the effectiveness of chemo. There are so many resources on TTAC.
How about Liposimal Vit C
She sounds like a candidate for Marihuana for appetite. Also you might see if you can get some moringa in her for nutrition.
Unfortunately Kale is very high in oxalates. I’ve only just found out that I have very high oxalates. I had breast cancer two years ago and had a lot of green juices, broccoli, turmeric, beets, nuts and seeds etc., mainly vegetables, little fruit, no dairy and very little chicken and fish (no meat). Now I have to adopt a low oxalate diet which means removing all of these foods except the animal products. I am beginning to wonder whether the oxalates were a contributing factor to the cancer as they kept my iron low, ferritin high, not absorbing calcium and other minerals, and other issues.
I would advise caution on eating tons of kale, and preferably eat it after boiling as this removes some of the oxalates. It is a myth I think that eating kale, and other vegetables, raw is the way to go. Most of the nutrients are bound to minerals and fiber and need to be heated to be activated. This is true for tomatoes and carrots for example.
Thanks for another great bit of information; kale!!
Awesome team, love you guys but i would have to respectfully disagree with the statement above. “we can’t change the genetic factors we’ve inherited from our parents that predispose us to various diseases, including cancer.”
I have studied and read many books for the last 30 years and i know we can change the genetic factors. It takes work and effort but it is absolutely possible.
I used to eat alot of broccli and this gives me Goitores in my Thyroid every time eat it know.
Can anyone suggest a natural plan for GBM brain tumor, it has been removed with surgery but the oncalogist is now doing radiation and Nivolumab for 2 years.