Dr. Ashley Chauvin, ND

Episode Summary

Are mammograms safe, does hormone replacement therapy increase breast cancer risk, and what can you actually do to lower your risk of breast cancer?

In this episode of Girls Gone Wellness, naturopathic doctor and former radiation therapist Dr. Ashley Chauvin, ND joins Victoria and Jeanette for an evidence-based discussion about breast cancer screening, mammograms, breast cancer risk factors, BRCA genetic testing, hormone replacement therapy, alcohol, soy, breast density, breast implants, thermography and cancer prevention.

A major focus of the conversation is breast cancer screening and mammogram safety. Dr. Chauvin explains why breast cancer screening recommendations have shifted toward earlier access for women in their 40s and clarifies an important point: in Ontario, one of the major changes is the ability to self-refer for mammography beginning at age 40, rather than needing to wait until age 50. The goal of mammography is to detect breast cancer at an earlier stage, before a lump may be felt, which can lead to earlier treatment and better outcomes.

The episode also tackles several common mammogram myths. Does radiation from mammography cause breast cancer? Can compressing the breast during a mammogram cause cancer to spread to the lymph nodes? Dr. Chauvin explains why mammograms remain the current gold-standard screening tool and why the benefits of screening substantially outweigh the risks for eligible patients.

Another major topic is thermography versus mammography. While thermography is often promoted online as a radiation-free alternative to a mammogram, Dr. Chauvin explains why current evidence does not support thermography as a replacement for standard breast cancer screening. If a thermography test shows a suspicious finding, a mammogram or other evidence-based imaging is still generally required.

The conversation also covers dense breasts, breast ultrasound and breast MRI. Dr. Chauvin explains that people with dense breast tissue may need supplemental imaging because dense tissue can make mammograms more difficult to interpret. Ultrasound and MRI can therefore be used in certain higher-risk situations, but they do not simply replace mammography for everyone.

Dr. Chauvin also discusses BRCA1 and BRCA2 genetic testing, family history and breast cancer risk assessment. Rather than recommending BRCA testing for everyone, she explains that genetic testing is usually guided by personal history, family history and formal risk assessment. The episode discusses tools such as the Tyrer-Cuzick breast cancer risk assessment and why breast cancer risk should be reassessed over time as family history changes.

The conversation then moves into hormone replacement therapy and breast cancer risk. Dr. Chauvin explains why older fears surrounding menopausal hormone therapy were likely overstated and why the conversation is more nuanced than “HRT causes breast cancer” or “HRT is completely risk-free.” The decision should be individualized and based on absolute risk, type of hormone therapy, duration of use and the patient's own values.

Other major topics include alcohol and breast cancer risk, smoking, physical activity, body composition, breastfeeding, breast density, age at first menstruation, age at menopause, oral contraceptives, breast implants and soy. Dr. Chauvin also explains why moderate intake of whole soy foods such as tofu, edamame and soy milk does not increase breast cancer risk and may be protective.

For anyone confused by breast cancer information on social media, this episode provides a clear overview of what is known about screening, prevention and risk — and why evidence-based breast cancer care requires nuance rather than fear.






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Claire Lockridge

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Dr. Samantha Van De Wal, ND