Monday, October 20, 2014

Preventing breast cancer with nutrition


October has been designated breast cancer awareness month. I think everyone is aware that breast cancer is the most common cancer among Canadian women and the second leading cause of death in Canadian women. Most likely we all know someone who has been touched by this disease. In my own case, it was my mother who was diagnosed in 1969 and succumbed to the disease in 1971, two months before her 40th birthday. Since then I have known a neighbour and numerous women in the cycling community, including one who is fighting cancer right now, who have fought the disease. Thankfully the survival rates in this group have been high.

Although the cause is not known, there are powerful foods, supplements and herbs that can help prevent the disease and in some cases save your life if you get breast cancer. And while breast cancer dietary guidelines can be specific to the particular type of breast cancer – women with high estrogen, postmenopausal women with lower estrogen levels, and women with a family history of the disease - there are general recommendations we can all follow to help stave off this disease.

12 steps to prevent breast cancer:

1. Block the estrogen receptor with:
                Soy – 35 grams /day (dosage is critical: too much or too little can have the opposite of the desired effect)
                Flax – 25 grams /day of ground flax seed (meal). Flax blocks the estrogen pathway and the estrogen booster effect

2. Change fats – the wrong fats are dangerous; getting the right fats can be preventive
                Avoid omega-6 and saturated fats
                Omega-3 and omega-9 reduce the risk of breast cancer: fish oils and olive oil

3. Make good estrogens – cruciferous vegetables contain indole-3 carbinol, which diverts estrogen into more “good” estrogens.
                Eat 2-3 servings a day or take 500 mg of indole-3 carbinol supplements if you at high risk (or DIM, diindolylmethane)

4. Lower insulin – insulin is the hormone that regulates blood sugar levels and can also act as a growth factor for cancer development. To lower your insulin level, avoid saturated fats and reduce your glucose load.

5. Drop glucose overload – avoid foods with a high glycemic index, eat more protein and more soluble fiber.

6. Increase fiber – Fiber interrupts most steps of the estrogen pathway. Fiber builds more estrogen carriers, traps estrogen in the bowel and then recirculates it, decreases glucose load, cuts hunger, and speeds weight loss.
                Recommended dose: 35-50 grams per day

7. Lower oxidative load – fruits and vegetables are the most powerful antioxidants
                Eat 5-9 fruits and vegetables per day
                1 ½ cups of green tea per day

8. Avoid chemical estrogens – the most powerful estrogen imitators are in pesticides!
The combination of three common pesticides – endosulfan, found in fruits and vegetables, and dieldrin and chlordane, found in contaminated beef, chicken, lamb, and fish – together produce an alarming effect on cancer cell production.

9. Decrease body fat – the recommendation is to get within 12 pounds of your ideal body weight (use the “pinch an inch” method to make this determination)

10. Limit alcohol – No alcohol is the safest dose. If you do drink, choose organic products such as champagne, wine, beer, tequila, and vodka because they have the least risk of contamination or carcinogens.

11. Increase vitamin D – vitamin D is a potent inhibitor of a cell’s ability to divide and grow.             
Vitamin D also helps breast cells mature so they are less vulnerable to cancer-causing toxins
Sources should come from sunlight or food as there is no evidence that a vitamin D supplement has any effect on breast cancer.

12. Exercise – exercise intercepts the estrogen pathway at several critical junctures
Recommendation: 4 or more hours of vigorous aerobic activity each week

For more information on breast cancer prevention, I recommend reading Dr. Bob Arnot’s book The Breast Cancer Prevention Diet. I hope you will incorporate some or all of these recommendations into your regime and not only save yourself from breast cancer, but live a healthier, more energetic life in the process!


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