Breast cancer is a type of cancer caused by abnormal cell changes that lead to uncontrolled growth. These abnormal cells are difficult for the immune system to manage, making medical treatment necessary. For patients, there are specific dietary restrictions that should be avoided when living with breast cancer.
Avoiding certain foods may help slow the growth of cancer cells and support more effective treatment. In addition to proper medical care, maintaining a healthy diet plays an important role in the recovery process. Therefore, do not miss the following discussion.
For more information on early cancer symptoms commonly affecting women, see:
“Early-Stage Breast Cancer Symptoms and How to Detect Them”
Foods to Avoid for Breast Cancer Patients
Certain foods may negatively affect the health of breast cancer patients or worsen their condition. It is important to understand which foods should and should not be consumed. Below are foods that should be avoided.
1. High-Fat Foods
Not all fats are harmful, as the body still requires fat for essential metabolic functions. However, certain types of fat are unhealthy and should be avoided by breast cancer patients.
Saturated fats, in particular, can worsen the condition. Breast cancer patients are encouraged to consume low-fat, high-fibre foods instead.
Foods high in saturated fat that should be avoided include:
- Vegetable oils
- Processed cheese
- Butter
- Cream
- Fatty meats
- Full-fat milk and dairy products
In addition, breast cancer patients should avoid high-fat foods packaged in containers containing bisphenol-A (BPA), as BPA acts as a synthetic estrogen that may disrupt hormonal balance.
2. Red Meat
Another dietary restriction for breast cancer patients is red meat. In 2015, the International Agency for Research on Cancer (IARC) indicated that excessive iron intake may increase the risk of colorectal cancer. Therefore, red meat—high in iron—can be carcinogenic if consumed in large amounts.
Processed red meat often contains high levels of fat, preservatives, and salt. This restriction also applies to beef treated with added hormones or antibiotics.
3. Alcohol
Breast cancer patients should avoid alcoholic beverages such as beer, spirits, wine, and other alcohol-containing drinks.
Alcohol causes dehydration and weakens the immune system’s ability to fight cancer cells. Additionally, alcohol provides no nutritional benefit to the body.
4. High-Sugar Foods
Foods high in sugar should also be avoided. Excessive sugar intake leads to elevated blood glucose levels and hyperinsulinaemia (excess insulin production), which may trigger inflammation and increase cancer risk.
5. Undercooked or Raw Foods
Undercooked foods can reduce white blood cell levels, weakening the immune system of breast cancer patients.
Patients are also more susceptible to infections and viruses found in raw or partially cooked foods. Avoid foods such as sushi, undercooked steak, and other inadequately cooked meals.
Read also: Early Warning Signs of Cervical Cancer and How to Prevent It
Lifestyle Habits to Prevent Breast Cancer
Based on research from the Breast Cancer Research Foundation and Healthline, several lifestyle habits can help reduce the risk of breast cancer.
1. Maintain an Ideal Body Weight
Maintaining a healthy weight is essential, as obesity is a known risk factor for breast cancer. Excess body fat increases estrogen receptor activity, which may worsen breast cancer risk.
Reducing estrogen production helps lower the risk of developing breast cancer.
2. Exercise Regularly
Regular physical activity supports overall health and reduces the risk of breast cancer. Exercise does not need to be intense—activities such as cycling, walking, or swimming for at least 30 minutes per session, several times a week, are beneficial.
3. Avoid Alcohol Consumption
As discussed earlier, alcohol is a dietary restriction for breast cancer patients. Avoiding alcohol significantly reduces cancer risk.
4. Consume Nutrient-Dense Foods
A balanced, nutritious diet strengthens the immune system and reduces breast cancer risk. Regularly consume:
- Fruits and vegetables
- Low-fat milk
- Fully cooked lean meats
Avoid fried foods and high-sugar products to support breast health.
5. Quit Smoking
Smoking harms both active and passive smokers by damaging blood vessels and increasing breast cancer risk.
A 2011 study by the National Institutes of Health found that women with a smoking history have a 10% higher risk of developing breast cancer compared to non-smokers.
6. Breastfeeding
Breastfeeding can lower breast cancer risk by promoting healthy estrogen regulation and reducing abnormal cell growth in breast tissue.
7. Consume Soy-Based Products
The American Cancer Society reports that traditional soy foods—such as tofu, tempeh, edamame, miso, and soy milk—may reduce breast cancer risk.
Soy products provide a healthy source of protein and may help lower cholesterol compared to animal fats and red meat.
Read also: Cervical Cancer Vaccine: Is It Necessary and When Should It Be Given?
Undergo Regular Screening for Breast Cancer Detection
In addition to adopting healthy lifestyle habits, regular screening is essential. Diagnostic tools such as breast ultrasound (USG) and mammography are available at healthcare facilities.
For more information, see:
“What Is Breast Ultrasound (USG Mammae)? Preparation and Procedure”
Several healthcare facilities in Indonesia provide comprehensive women’s health screening services. One of them is RSIA Bunda Denpasar, which offers modern facilities for women’s health examinations, maternity care, 24/7 emergency services, teleconsultation, home care, and other medical services.
Explore available health packages at RSIA Bunda Denpasar by contacting our team for more information.
