Dante Carrillo
Lifestyle factors such as diet and exercise can play a significant role in reducing the risk of cancer. According to the World Health Organization (WHO), about 30-40% of cancers can be attributed to lifestyle choices, including physical inactivity, unhealthy diets, and obesity. Research suggests that regular exercise and a well-balanced diet can lower the chances of developing several types of cancer. For instance, aerobic training and resistance exercises have been linked to reduced anxiety, improved quality of life, and lower cancer risks, especially for breast, colorectal, and prostate cancers. Similarly, a plant-based diet rich in fiber, fruits, and vegetables can reduce inflammation and lower the risk of various cancers, including breast, colorectal, and prostate cancer. Thus, adopting a healthy lifestyle that includes regular physical activity and a nutritious diet can be a powerful tool in the fight against cancer.
| Characteristics | Values |
|---|---|
| Body fat | The more body fat a person carries, the greater their risk of cancer. |
| Physical activity | Being physically active can lower your risk of cancer. |
| Diet | Eating a healthy diet rich in fruits, vegetables, whole grains, and lean proteins can reduce your risk of cancer. |
| Alcohol | Limiting alcohol consumption can help reduce the risk of cancer. |
| Tobacco | Avoiding tobacco use can help lower the risk of cancer. |
| Weight | Maintaining a healthy weight can reduce the risk of cancer. |
| Calorie restriction | Restricting calories through diets like intermittent fasting can have a protective effect against cancer. |
| Sugar | High intake of sugar is associated with weight gain and increased risk of cancer. |
| Red meat | Limiting red meat consumption can help reduce the risk of certain cancers. |
| Exercise type | Moderate-intensity aerobic training and/or resistance exercise are recommended to lower cancer risk. |
| Exercise duration | Adults are advised to engage in 150-300 minutes of moderate-intensity or 75-150 minutes of vigorous-intensity activity weekly. |
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What You'll Learn
- A plant-based diet can reduce cancer risk
- Exercise helps to regulate hormones that contribute to cancer development
- Phytochemicals in plants protect the body from cancer
- Alcohol consumption increases the risk of mouth, pharynx, and liver cancer
- Obesity and being overweight are factors in an estimated 14% to 20% of cancer deaths
A plant-based diet can reduce cancer risk
Research has shown that a plant-based diet can reduce the risk of developing cancer. This is because plant-based foods contain phytochemicals, the nutrients that your immune system needs to fight off diseases like cancer. Plant-based diets are also high in natural fibre, which has been shown to reduce cancer risk and moderate insulin levels.
The American Institute for Cancer Research recommends limiting your diet to 18 ounces of red meat per week. Red meat has no fibre and is often high in fat. This can contribute to the production of hormones and increases the risk of cancers, including colorectal, breast, and prostate.
Up to 50% of preventable cancers are a result of the foods we eat. That's why it's so important to eat five to nine servings of fruits and vegetables each day. Doing this can go a long way in lowering your cancer risk.
In addition to a plant-based diet, exercise has also been shown to reduce the risk of cancer. The U.S. Department of Health and Human Services Physical Activity Guidelines for Americans, released in 2018, recommends that for substantial health benefits and to reduce the risk of chronic diseases, including cancer, adults engage in 150 to 300 minutes of moderate-intensity aerobic activity, 75 to 100 minutes of vigorous aerobic activity, or an equivalent combination of each intensity each week.
It is important to note that no diet choice will guarantee that you won't develop cancer, and that any highly restrictive diet should only be followed under the direction of a medical professional.
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Exercise helps to regulate hormones that contribute to cancer development
Exercise has been shown to lower the risk of several types of cancer, including breast, colon, prostate, endometrial, and possibly pancreatic cancer. It achieves this through various mechanisms, one of which is by helping to regulate hormones that contribute to cancer development.
Estrogen and insulin are two hormones that can encourage cancer growth. Excess weight and body fat can lead to increased production and circulation of these hormones. Regular exercise helps to maintain a healthy weight, thereby reducing the levels of these hormones in the body. This is especially important in regulating the growth of breast cells, as estrogen and insulin can cause these cells to divide more often, increasing the risk of breast cancer.
In addition to helping with weight management, exercise itself can directly lower hormone levels. Physical activity has been shown to decrease levels of sex hormones, such as estrogen, and growth factors associated with cancer development and progression. This is particularly relevant to breast and colon cancer. Exercise also prevents high blood levels of insulin, another hormone linked to cancer development.
The specific type and amount of exercise required to effectively regulate hormones and reduce cancer risk is still being studied. Current recommendations from the U.S. Department of Health and Human Services suggest that adults engage in 150 to 300 minutes of moderate-intensity aerobic activity or 75 to 100 minutes of vigorous aerobic activity per week. However, even lower amounts of activity can be beneficial, and it is important to start slowly and gradually increase exercise intensity and duration.
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Phytochemicals in plants protect the body from cancer
Phytochemicals are natural, plant-based compounds found in fruits, vegetables, whole grains, legumes, and other plant foods. They have been shown to help prevent cancer by reducing inflammation, protecting cells from damage, and slowing the growth and spread of cancer cells. Phytochemicals can also interrupt processes in the body that encourage cancer production.
One example of a powerful phytochemical is sulforaphane, found in cruciferous vegetables like broccoli, cauliflower, and kale. Research has shown that a combination of tomato and broccoli in the diet was more effective at slowing tumor growth than either vegetable alone. Blueberries and peaches have also been shown to reduce the incidence of ER- breast cancer in post-menopausal women.
The anti-tumor activities of plant-derived foods are believed to come from the combination of various phytochemicals rather than an isolated agent. The complex mixture of phytochemicals with a plethora of biological activities present in whole plant-derived foods could have additive or synergistic effects against carcinogenesis. Phytochemicals may positively affect processes of cell signaling, cell cycle regulation, oxidative stress response, and inflammation. They can modulate non-coding RNAs, upregulate tumor suppressors, and downregulate inflammatory pathways.
Phytochemical-rich foods are the most effective way to obtain the cancer-preventive benefits associated with these natural compounds. However, for those who may have difficulty incorporating enough of these foods into their diet, phytochemical supplements may be a viable option. It is important to note, however, that supplements should not be relied on as a primary source of nutrients, and a balanced diet rich in a variety of fruits, vegetables, whole grains, and lean proteins is still the best way to obtain the full range of nutrients and health benefits needed for optimal health.
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Alcohol consumption increases the risk of mouth, pharynx, and liver cancer
Experts agree that a healthy diet and regular exercise can help lower your cancer risk. Excess body fat increases the production and circulation of estrogen and insulin, two hormones that can encourage cancer growth. A healthy diet includes fruits, vegetables, nuts, beans, and whole grains, and it's recommended to eat five to nine servings of fruits and vegetables each day.
Alcohol consumption is linked to an increased risk of developing several types of cancer. Even those who have no more than one drink per day are at a modestly increased risk of some cancers. The more alcohol a person drinks, the higher their risk of developing an alcohol-associated cancer.
Alcohol consumption is associated with an increased risk of mouth, pharynx, and liver cancer. People who consume alcohol and tobacco have a much greater risk of developing these cancers than those who use either alcohol or tobacco alone. The combination of alcohol and tobacco use has a multiplicative effect on the risk of oral and pharyngeal cancers.
Heavy alcohol consumption is associated with approximately a 2-fold increased risk of two types of liver cancer: hepatocellular carcinoma and intrahepatic cholangiocarcinoma. Alcohol is broken down into acetaldehyde, a toxic chemical and probable human carcinogen that can damage DNA and proteins.
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Obesity and being overweight are factors in an estimated 14% to 20% of cancer deaths
Obesity and being overweight are significant factors in cancer deaths, contributing to an estimated 14% to 20% of these fatalities. The link between obesity and cancer risk is clear and well-established. Research shows that excess body fat increases the risk of several cancers, including colorectal, post-menopausal breast, uterine, esophageal, kidney, and pancreatic cancers. The more body fat a person carries, the greater their risk of developing cancer.
One of the key mechanisms by which obesity increases cancer risk is through the production and circulation of higher levels of certain hormones, such as estrogen, insulin, and insulin-like growth factors. These hormones can promote cell proliferation and growth, leading to an increased risk of cancer development and progression. Additionally, obesity can cause long-lasting inflammation, which is also linked to an elevated risk of cancer.
The increased risk of cancer associated with obesity and being overweight is not limited to specific types of cancer but extends to various forms of the disease. For example, in a large clinical trial, patients with stage II and stage III rectal cancer and a higher baseline BMI, particularly men, had an increased risk of local recurrence. Similarly, death from multiple myeloma is 50% more likely for individuals with the highest levels of obesity compared to those at a healthy weight.
Furthermore, obesity can lead to challenges in cancer screening and management. For instance, obese or overweight women have an increased risk of cervical cancer compared to women of healthy weight due to less effective cervical screening methods. This highlights how obesity not only increases the risk of developing cancer but also impacts the detection and treatment of the disease.
To reduce the risk of obesity-associated cancer, maintaining a healthy weight through a balanced diet and regular physical activity is crucial. Experts recommend a diet rich in fruits, vegetables, whole grains, lean proteins, and fiber, while limiting the consumption of processed foods, sugary drinks, red meat, and unhealthy fats. Additionally, engaging in regular moderate-to-vigorous physical activity, as recommended by health organizations, can help lower the risk of cancer and improve overall health.
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Frequently asked questions
Exercise helps to maintain metabolism and reduce excess fat, thereby reducing the risk of inflammation. It also helps regulate hormones that contribute to the development of cancer and keeps the immune system healthy. According to the National Cancer Institute, there is a strong link between physical activity and a lower risk of colorectal cancer, postmenopausal cancer, and endometrial cancer.
A healthy diet includes five or more servings of fruits and vegetables each day, with half of the grains coming from whole grains. It is also recommended to limit the consumption of sugar, red meat, and processed foods. A healthy diet provides our bodies with essential nutrients and antioxidants that combat free radicals and reduce oxidative stress.
It is recommended to limit alcohol consumption and avoid tobacco. The American Institute for Cancer Research suggests limiting red meat consumption to 18 ounces per week. When cooking meat, it is better to bake, broil, or poach instead of frying or grilling at high temperatures, as this can result in the formation of cancer-causing chemicals.
