Gaining weight after starting anastrozole is a real and frustrating experience that many people share. A MyBCTeam member once said they felt like they were "pushing a door against hurricane winds" despite exercising six days a week. You're definitely not alone in this.
Weight gain from aromatase inhibitors like anastrozole Show Full Answer
Gaining weight after starting anastrozole is a real and frustrating experience that many people share. A MyBCTeam member once said they felt like they were "pushing a door against hurricane winds" despite exercising six days a week. You're definitely not alone in this.
Weight gain from aromatase inhibitors like anastrozole tends to be most noticeable during the first year of treatment. It doesn't necessarily mean it will keep climbing at the same rate, but it can be harder to lose weight while on it.
Some factors that may increase the likelihood of weight gain include:
- Being under 60 years old
- Having had a mastectomy
- Smoking cigarettes Regarding Mounjaro (tirzepatide) — that's a great question to bring directly to your oncology team. They'll be best placed to assess whether it's appropriate given your current treatment plan, as eligibility depends on your individual health profile.
In the meantime, here are some practical steps that may help manage weight while on anastrozole:
- Track your food intake — even a simple photo diary can help
- Limit alcohol — it adds hidden calories with no nutritional benefit
- Consider a referral to a registered dietitian who understands breast cancer treatment
- Talk to your oncology team before starting any weight management plan
Small, consistent changes can make a real difference over time. Be kind to yourself — your body is going through a lot right now. 💛
July 17
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