The Mounjaro tracker built for women on tirzepatide.
Two receptors, more average weight loss, and one drug-specific contraception note most women don't hear from their prescriber.
The tracking happens in Foodose for iPhone, which starts with a free trial. Want your numbers first, with nothing to install? Get them on the web.
Mounjaro is tirzepatide, prescribed for type-2 diabetes. It is the dual GLP-1 / GIP receptor agonist, the second receptor is the reason average weight loss on tirzepatide is roughly 50 percent higher than on semaglutide in the head-to-head SURMOUNT-5 trial.
Mounjaro climbs through 2.5, 5, 7.5, 10, 12.5 and 15 mg weekly, and the calculator carries a published appetite factor for all six. At 15 mg the estimate is that you can manage around half of what you ate before, which is the number worth knowing before you decide whether to climb. The side-effect pattern differs from semaglutide too: slightly more constipation, slightly more early-titration nausea.
Where Mounjaro warrants extra attention for women: oral contraceptives. The Eli Lilly label is explicit that tirzepatide can reduce the absorption of oral contraceptive pills, especially in the four-week window after starting and after each dose increase. Most people are never told. Four weeks of barrier protection after each change is the label guidance.
Built around how this medication actually works.
All six dose steps
2.5 / 5 / 7.5 / 10 / 12.5 / 15 mg, where you are in the titration, and a dose card that says due, late or missed against the label.
The contraception note
Tirzepatide can reduce oral contraceptive absorption. Four weeks of barrier protection after every dose escalation.
Constipation, handled
Constipation is one of the most common reasons people stop taking these medications. The calculator raises your fibre target when you report it, and holds the water target alongside it, because fibre without fluid makes it worse rather than better.
Six-site injection rotation
Abdomen, thigh and upper arm, both sides. The app asks which site after every dose, so rotating takes no memory.
What the studies actually say.
Evidence-based summaries of the papers that informed every part of this page. Each article cites its sources.
What to eat on Mounjaro: a practical plate for tirzepatide
There is no official Mounjaro diet. There is a better way to eat on it: protein first, smaller plates, fibre with fluid, and extra care in the weeks after each dose increase.
Staying on a lower GLP-1 dose: what the first maintenance trial found
Reached your goal and wondering whether to stay, step down or stop? A 2026 trial tested dropping tirzepatide to 5 mg for a year. What it found, what stopping does, and what is…
How many calories should you eat on a GLP-1?
There is no official calorie number for Ozempic, Wegovy or Mounjaro. Here is how a sensible target is worked out, why appetite often decides the total, and the floor to stay above.
Tirzepatide or semaglutide with niacinamide, B12 or glycine: what the added ingredient does
Compounded tirzepatide and semaglutide are often sold with niacinamide, vitamin B12, B6 or glycine added. Why those combinations exist, what each ingredient actually does, whether…
Mounjaro vs Wegovy: how to think about the choice
Tirzepatide loses more weight on average. Semaglutide has more years of safety data. The right answer is rarely about averages, here's the framework your prescriber is probably…
Tirzepatide vs Semaglutide: A Calm Decision Guide for Women
Tirzepatide vs semaglutide, explained for women on GLP-1: how each molecule works, the head-to-head evidence, side effects, and the real decision criteria.
GLP-1s and the pill: a warning women on Mounjaro and Zepbound need to read
Tirzepatide can reduce the effectiveness of oral contraceptives. The label is clear about it; the conversation often isn't. Here is what to know, what to switch to, and for how…
Pausing your titration: the dose-hold most prescribers don't mention
Standard GLP-1 protocols climb the dose every four weeks. Nothing in the label requires that. The pause that protects skin, muscle, and mood is one of the most useful, and least…
Constipation on a GLP-1: the fibre, water, magnesium loop that actually works
Slower gastric emptying is how GLP-1s work. It is also why roughly one in four people on semaglutide develop constipation. Here is the protocol that fixes it without bringing back…
How to rotate your GLP-1 injection sites, and why it matters more than you think
Always the same spot. Always the same time. Always the same low-grade lump under the skin. Here is the rotation pattern that prevents lipohypertrophy, and the technique notes most…
GLP-1s and pregnancy: the two-month wash-out you need to plan for
GLP-1s are not approved for use in pregnancy. The standard guidance is to stop the medication two months before trying to conceive. Here is the reasoning, the gap in the data, and…
Retatrutide vs tirzepatide vs semaglutide: how to think about the triple agonist
One receptor, two, or three. The numbers climb with each. But the drug that wins on a trial chart is not always the one that's right for you, and the newest one isn't available…
Retatrutide, explained: the triple agonist behind 30% weight loss
Lilly's TRIUMPH-1 trial just reported the highest weight loss the field has seen, up to 30% of body weight. Here is what retatrutide actually is, what the numbers mean, and the…
Get your GLP-1 numbers and a 3 day plan. Free.
Built around how your body actually works on Ozempic, Wegovy, Mounjaro and Zepbound. It runs in your browser, there is nothing to install, and nothing you type is stored.
For the daily version of this, food, dose, symptoms and the trend, there is the Foodose app for iPhone.