Breast Cancer

The category refers to primary malignant neoplasms of parenchyma, connective, and soft tissue of the breast, including nipple and areola.

116 recommendations

Last updated: February 27, 2026

Diet

Alcohol

Alcohol consumption consistently increases breast cancer risk across all tumor subtypes

AvoidCaution

19 studies

Fruits and vegetables

Higher fruit and vegetable intake linked to reduced breast cancer risk and recurrence

Suggested

5 studies

Dietary Fat

High-fat diets linked to increased breast cancer risk

AvoidCaution

4 studies

Dietary fiber

Higher dietary fiber intake linked to reduced breast cancer risk and recurrence

Suggested

4 studies

Red meat

Red meat consumption strongly associated with increased breast cancer risk

AvoidCaution

4 studies

Butter

Higher butter intake linked to increased breast cancer risk, especially premenopausal women

Caution

3 studies

Dairy products

Dairy and yogurt consumption linked to reduced breast cancer risk

Suggested

3 studies

Legumes

Regular legume consumption linked to significantly lower breast cancer risk

Suggested

3 studies

Processed meat

Processed meat consumption linked to modestly increased breast cancer risk

Caution

3 studies

Coffee

Regular coffee consumption linked to lower breast cancer risk in women

Suggested

2 studies

Fast food

Frequent fast food consumption linked to significantly higher breast cancer risk

Avoid

2 studies

Fatty Fish

Regular fatty fish consumption linked to significantly lower breast cancer risk

Suggested

2 studies

Hydrogenated fats

Hydrogenated fat and trans fat intake linked to higher breast cancer mortality risk

Avoid

2 studies

Low-fat diet

Low-fat dietary patterns may improve cholesterol and reduce inflammation in breast cancer survivors

Suggested

2 studies

Omega-3 Fatty Acids

Higher omega-3 to omega-6 ratio linked to reduced breast cancer risk

Suggested

2 studies

Omega-6 Fatty Acids

Excessive omega-6 fatty acid intake linked to increased breast cancer risk

Caution

2 studies

Red and processed meat

Limiting red and processed meat intake may lower breast cancer risk

Caution

2 studies

Saturated Fat

High saturated fat intake linked to increased breast cancer risk and mortality

Avoid

2 studies

Soft drinks

Regular soft drink consumption linked to doubled breast cancer risk in postmenopausal women

Avoid

2 studies

Vegetable Oils

Vegetable oil consumption linked to meaningful reductions in breast cancer risk

Suggested

2 studies

Whole grains

Whole grain consumption linked to meaningful reductions in breast cancer risk

Suggested

2 studies

Supplements

Vitamin D

Vitamin D supplementation supports breast cancer prevention and bone health during treatment

Suggested

4 studies

Actions

Physical activity

Regular physical activity lowers breast cancer risk and improves survival outcomes

Suggested

31 studies

Breast self-examination

Regular breast self-examination supports earlier detection and improved survival outcomes

Suggested

17 studies

Weight management

Maintaining healthy weight significantly lowers breast cancer risk and improves survival outcomes

Suggested

17 studies

Weight loss

Weight loss reduces breast cancer risk and improves survival-related biomarkers in overweight women

Suggested

14 studies

Mammography screening participation

Regular mammography screening reduces breast cancer mortality by 28-43%

Suggested

13 studies

Smoking cessation

Quitting smoking reduces breast cancer risk and improves survival across all tumor subtypes

Avoid

9 studies

Weight management to BMI 22-24

Maintaining a healthy BMI significantly lowers breast cancer risk and improves survivor outcomes

Suggested

8 studies

Aerobic exercise

Aerobic exercise reduces cancer-related fatigue and improves quality of life in breast cancer survivors

Suggested

5 studies

Breastfeeding

Breastfeeding lowers breast cancer risk through reduced lifetime estrogen exposure

Suggested

5 studies

Strength training

Strength training reduces cancer-related fatigue and improves physical function in breast cancer survivors

Suggested

5 studies

Cognitive behavioural strategies

Cognitive behavioral strategies reduce depression, anxiety, and improve quality of life after breast cancer

Suggested

4 studies

Moderate caloric restriction

Moderate caloric restriction may lower breast cancer risk and improve survivor outcomes

Suggested

3 studies

Acceptance and Commitment Therapy

Acceptance and Commitment Therapy reduces fatigue and sleep disturbance in breast cancer patients

Suggested

2 studies

Dance Movement Therapy

Dance movement therapy buffers stress and pain during breast cancer radiotherapy

Suggested

2 studies

Home exercise program

Home exercise programs reduce psychological distress and improve fitness in breast cancer patients

Suggested

2 studies

Mindfulness-Based Stress Reduction

Mindfulness-based stress reduction improves mood and quality of life in breast cancer survivors

Suggested

2 studies

Peer support

Peer support groups improve quality of life and mental health in breast cancer patients

Suggested

2 studies

Qigong

Qigong practice may improve lymphedema, blood flow, and quality of life in breast cancer survivors

Suggested

2 studies

Rehabilitation exercise program

Multidisciplinary rehabilitation programs improve physical function and quality of life after breast cancer

Suggested

2 studies

Secondhand smoke exposure avoidance

Avoiding secondhand smoke reduces breast cancer risk, especially with prolonged exposure

Avoid

2 studies

Self-management education program

Self-management education programs maintain quality of life during breast cancer recovery

Suggested

2 studies

Weight maintenance

Maintaining stable weight reduces postmenopausal breast cancer risk by up to 73%

Suggested

2 studies

Red Flags

New breast lump or change

Any new breast lump or change warrants prompt medical evaluation within days

See Doctor Soon

20 studies

Depressive symptoms

Monitor for depression early — it affects over 90% of newly diagnosed breast cancer patients

See Doctor SoonWatch

3 studies

Family history of breast cancer

Family history of breast cancer significantly increases risk and demands proactive screening

See Doctor Soon

2 studies

Weight gain over 10 kg since age 20

Weight gain exceeding 10 kg since age 20 raises postmenopausal breast cancer risk by 42%

Watch

2 studies