Womens Study to Alleviate Vasomotor Symptoms

Inclusion Criteria: 1. Post-menopausal women aged 40-60 years 2. English fluency 3. Moderate-to-severe hot flashes experienced at least twice per day 4. Started menopause within the last 10 years 5. No menses in preceding 12 months 6. Access to an iPhone or Android phone and willingness to install a hot-flash recording app. 7. Willingness to participate in weekly classes 8. Willingness to follow a low-fat vegan diet, including daily consumption of soybeans. Exclusion Criteria: 1. Use of hormonal medications in the preceding 2 months 2. An explanation for hot flashes other than menopause (e.g., medication use, cancer treatment) 3. Smoking during the past six months 4. History of an eating disorder or evidence of a current eating disorder (as determined by an eating disorder diagnosis, the discretion of a qualified medical professional, or an Eating Attitudes Test-26 score \>20) 5. Alcohol consumption of more than 2 drinks per day or the equivalent, episodic increased drinking (e.g., more than 2 drinks per day on weekends), or a history of alcohol abuse or dependency followed by any current use 6. Use of recreational drugs in the past 6 months 7. Use of weight-loss medications over the last 6 months or a current attempt to lose weight 8. Body Mass Index \< 18.5 kg/m2 9. Soy allergy