GLP-1 medications are usually discussed as a monthly cost, not a monthly saving — but a growing body of consumer-spending research shows households on these drugs measurably cut their grocery, dining, and alcohol spend. This calculator turns that research into a personal estimate: how much your own food budget might shrink, and how much of your drug cost that actually offsets.

What the spending research actually shows

Consumer-spending studies tracking households with a GLP-1 prescription — drawing on retail panel and card-transaction data from researchers including Cornell University and the consumer-analytics firm Numerator — have found measurable pullback across several food categories. Grocery spending drops the least (roughly 5–11%), since staple food purchases persist even as appetite falls. Dining and fast food drop more (roughly 8–15%), and alcohol shows the largest reduction of any category studied (roughly 15–30%), consistent with emerging research on GLP-1s reducing cravings for alcohol specifically, not just food volume.

Why the calculator shows ranges, not one number

No study claims a single household will see an exact percentage drop — the ranges reflect variation across study populations, drug type, dose, and time on the medication. This calculator picks a point estimate inside each category's cited range based on the appetite-reduction intensity you select, but always shows the underlying range alongside it. Treat the output as a reasoned estimate for budgeting purposes, not a guaranteed number.

The net-cost framing most people never do

Most online discussion treats the GLP-1 price tag in isolation — $500 a month feels expensive, full stop. But if that same household is also spending $100–200 less a month on groceries, takeout, and drinks, the honest monthly cost of the drug is lower than the sticker price. This calculator nets the two together, using USDA food-expenditure data as a baseline for typical grocery-vs-dining splits, so the number you see reflects total household cash flow, not just the pharmacy line item.

This is a budgeting tool, not a medical one

Nothing here relates to dosing, eligibility, or medical outcomes — it's strictly a spending estimate. If you're deciding whether a GLP-1 is worth it, the food-spending offset is one input among many (insurance coverage, side effects, and long-term health goals matter far more) — use this alongside, not instead of, guidance from your prescriber.