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How to Prevent Cancer – The Latest Recommendations from the Experts

2018 06 - cancer prevention recos

Just last month, the World Cancer Research Fund (WCRF) and the American Institute for Cancer Research (AICR) released their Third Expert Report Diet, Nutrition, Physical Activity and Cancer: A Global Perspective. This new report builds on the information from the two previous reports in 1997 and 2007, and brings together the very latest research, findings and cancer prevention recommendations from an Expert Panel. Here are the 10 recommendations which promote an overall healthy lifestyle and holistic way of life, including healthy patterns of diet and physical activity.

1. Be a healthy weight. Maintaining a healthy weight (as measured by Body Mass Index and Waist Circumference) throughout life is one of the most important ways to protect against cancer. Excess body weight is associated with over a dozen types of cancer.

2. Be physically active. There is strong evidence that physical activity protects against cancers of the colon, breast and endometrium. Be physically active as part of everyday life. The Expert Panel recommends walking more and sitting less.

3. Eat wholegrains, vegetables, fruit and beans. Make these foods a usual part of your daily diet. Aim for at least 30 grams of fibre every day from food. Eat a diet high in all types of plant foods including at least five servings of a variety of non-starchy vegetables and fruit every day.

4. Limit consumption of ‘fast foods’ and other processed foods high in fat, starches or sugars (such as pre-prepared dishes, snacks, bakery foods, desserts and candy). Limiting these foods helps control calorie intake and maintain a healthy weight.

5. Limit consumption of red meat and processed meat. There is strong evidence that consumption of red meat and processed meat are both causes of colorectal cancer. The Expert Panel notes that this recommendation does not mean that you have to completely avoid eating meat. However, if you do eat red meat, limit consumption to no more than about three portions per week (a maximum of about 350 to 500 grams or 12-18 ounces of cooked red meat, or about 700-750 grams of uncooked red meat). Eat very little, if any, processed meat.

6. Limit consumption of sugar sweetened drinks. For hydration, drink mostly water and unsweetened drinks such as tea or coffee without added sugar. When it comes to fruit juice, the Expert Panel advises to not drink fruit juice in large amounts.

7. Limit alcohol consumption. For cancer prevention, it’s best not to drink alcohol. If you do drink alcohol, don’t exceed the national guidelines.

8. Rely on diet rather than supplements. For most people, consuming the right foods and drinks is more likely to prevent cancer than taking supplements.

9. Breastfeed your baby. For mothers, breastfeed your baby if you can. Breastfeeding is good for both mother and baby – it helps protect the mother from breast cancer, and it protects children against excess weight gain, overweight and obesity.

10. Cancer survivors. Whether you’ve just been diagnosed or are going through treatment, get nutritional care and guidance on physical activity from trained professionals. If you can, follow the Cancer Prevention Recommendations as far as possible unless otherwise advised by your health care professional.

Click here to read the complete report.

3 out of 5 adults have a chronic disease! Are you one of them?

chronic disease apr 2017

Did you know that 4 out of 5 Canadian adults are at risk for chronic disease, and 3 out of 5 Canadian adults actually live with a chronic disease? [1]  The top 4 chronic diseases in Canada are Cancer, Cardiovascular Disease, Diabetes and Chronic Respiratory disease. The good news is that 40% of cancers, 80% of heart disease, type 2 diabetes and respiratory disease are preventable by reducing common risk factors such as:

  • poor nutrition
  • lack of physical activity
  • smoking
  • harmful use of alcohol.

According to the World Health Organization, an unhealthy diet is one of the primary risk factors for chronic disease. Research shows that diet counselling makes a difference. For example, structured and intensive lifestyle interventions delivered by dietitians can reduce the risk of developing type 2 diabetes by up to 60% in clients at risk.[2]

What can you do? 

  • Eat a nutritious and healthy diet, including lots of fruit and vegetables
  • Don’t smoke or use other forms of tobacco
  • Limit your alcohol consumption to Canada’s LOW risk drinking guidelines
  • Maintain a healthy body weight
  • Get regular physical activity

How do you know which nutrition information to trust?

There is so much nutrition information out there that Canadians don’t know what to believe. It can be challenging to know which online nutrition information is credible and which is not. [3] For your food and nutrition questions – ask a Registered Dietitian. Registered Dietitians are the most trusted food and nutrition experts who are committed to helping Canadians enjoy safe, nutritious, affordable and healthy eating.  As nutrition experts, dietitians can help you decide on and find factual information that’s relevant to your health and wellness needs. Contact us or check out the ‘Your Health’ section at www.dietitians.ca.

 

[1] Chronic Disease Alliance Prevention Canada (2016)  http://www.cdpac.ca/media.php?mid=1411
[2] Dietitians of Canada, The impact of diet counselling (2015) https://www.dietitians.ca/Downloads/Public/Chronic-Disease-2-pager.aspx
[3] Dietitians of Canada Nutrition Month (2017) www.dietitians.ca

Does coffee cause cancer?

coffee cup

Nutrition is a relatively young science with new research constantly emerging. The recent headline about coffee and cancer is a good example of this.

Twenty-five years ago, the World Health Organization (WHO) had identified coffee as a possible carcinogen linked to bladder cancer. On June 15, 2016, the WHO updated their advice.

The WHO’s International Agency for Research on Cancer, which is an international working group of 23 scientists, reviewed 1000 scientific studies, and found that drinking coffee and maté (a tea made from the dried leaves of the yerba mate plant) is not linked to cancer. In fact, coffee may be protective against cancers of he liver and uterine endometrium.

The new findings however do see a connection between high-temperature beverages and their potential link to cancer. According to the WHO, drinking beverages (even water) that are very hot – which is defined as anything above 65°C (149°F) – is linked to a higher risk of cancer of the esophagus. It’s thought that the hot temperature scalds the delicate tissue in the esophagus. This damage may then trigger a faster turnover of the cells which in some cases can lead to out of control malignant growth.

Esophageal cancer is the eighth most common cancer worldwide with the highest incidence in Asia, South America, and East Africa where drinking very hot beverages is common. Maté is traditionally consumed at very hot temperatures (70°C). Certain countries such as China and Iran also tend to drink their teas prepared at very high temperatures, above 65°C or 70°C.

It’s likely that your favourite hot drink from the coffee/tea shop is made at very hot temperatures. Here are my tips for enjoying your hot cuppa:
– Allow your hot drink to cool down a bit before taking that first sip.
– Add some milk or cream to lower the temperature of your hot drink.
– Brew your own tea using hot but not scalding hot water.
– Stick to four cups of coffee or less (4 x 8 ounces or 4 x 250 mL) – any more will put you over your daily caffeine limit.

Saturated Fats and Processed Meats – Fact, Fiction or Controversy?

WHO bacon headline

Nutrition headlines never cease to draw interest and boost readership. After all, we are all food consumers and want to know what’s hot and what’s not. Read on for our commentary of the Heart and Stroke Foundation’s new advice for healthy eating and saturated fat, and the World Health Organization’s hot off the press research release on processed meat.

A recent study published in the British Medical Journal questions the effect of saturated fat on heart disease. The study also showed that there is a clear relationship between trans fats and heart health problems. Although more work needs to be done, what we see is that saturated fats (which are found naturally in red meat, dairy products and certain vegetable oils) may not be as bad for heart health as we thought. However, trans fats, which are often found in processed or fried foods should be limited in the diet.

The Heart and Stroke Foundation of Canada suggests that if you eat a “balanced diet you don’t have to worry as much about intake of saturated fat.” The Foundation also issued a statement “advocating for moderation and choosing whole foods instead of processed ones.”

Another statement recently released by the World Health Organization (WHO) points to processed and red meat consumption as a risk factor for cancer. The WHO media release states: “The experts concluded that each 50 gram portion of processed meat eaten daily increases the risk of colorectal cancer by 18%”. While these numbers sound dramatic, food and nutrition experts caution that they need to be taken in context.

As registered dietitians we closely follow the research, the evidence and the headlines and will elaborate on the key issues in our future programs and newsletters. For now we recommend you consider the big picture of an overall healthy dietary pattern with our top 3 tips below:

  1. Vary your daily protein choices.
  2. Include lean meats, poultry and fish (in smaller amounts) along with plant based meat alternatives such as beans, legumes, nuts and seeds.
  3. Dietitians of Canada recommends limiting processed meat consumption, in part due to the association with cancer risk as well as the high levels of sodium in these meats.