Answer
Weight changes are reported, but there is no good evidence that oestrogen HRT itself usually causes weight gain; ageing and menopause can also affect weight.
Sources for this answer
- Progynova 1mg — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.