About Leve

Why it exists

GLP-1 medicines are expensive, and the details are easy to lose: the day and site of your last shot, the protein you skipped on a day with no appetite, the nausea that shows up on the same day every week. Midlife adds its own layer: hormone therapy to keep track of, hot flashes and sleep that change from week to week, muscle that's harder to hold on to. Leve puts it all in one place, for you and for your next appointment.

Where the numbers come from

• Estimated medication curve (in the app): a simple model (first-order absorption and elimination) using the half-life published in the FDA prescribing information: about 7 days for semaglutide, about 5 days for tirzepatide and about 13 hours for liraglutide. It's illustrative: it shows the shape of your week, not the amount in your body.
• Suggested protein: 1.2 to 1.6 g per kg of goal weight a day (roughly 0.55 to 0.73 g per pound), a range cited in nutrition guidance for people on a GLP-1 who want to protect lean mass.
• Water: about 32 ml per kg for women, 36 ml per kg for men or 34 ml per kg if you'd rather not say, kept between 61 and 118 fl oz a day. Fiber: 25 g a day for women or 30 g for men, common adult references. Reference calories: the Mifflin-St Jeor equation with your activity level, shown in small print and never as a diet.
• Units: you see and type pounds, inches and fluid ounces; behind the scenes Leve stores metric, so nothing gets rounded away.
• Foods: about 400 everyday US foods with calories, protein, carbs, fat and fiber per 100 g and household portions (cups, tablespoons, ounces, slices), taken from USDA FoodData Central (SR Legacy), plus foods you add from a label. Each item shows where its numbers come from, with its FoodData Central ID.
• Tips and symptom guides: our own educational texts, each citing its source, pending review by a health professional.

Main sources

• FDA prescribing information for Ozempic®, Wegovy®, Rybelsus® (semaglutide), Mounjaro®, Zepbound® (tirzepatide), Saxenda® and Victoza® (liraglutide).
• National Academies of Sciences, Engineering, and Medicine: Dietary Reference Intakes for water and fiber (2005). EFSA dietary reference values (2010).
• Physical Activity Guidelines for Americans, 2nd edition (HHS, 2018).
• NIDDK (National Institutes of Health): eating, diet and nutrition for constipation and diarrhea; acid reflux in adults.
• U.S. Department of Agriculture, Agricultural Research Service. FoodData Central: SR Legacy, April 2018 (fdc.nal.usda.gov). Public domain.
• Mifflin MD, St Jeor ST et al. A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr, 1990.

What Leve doesn't do

• It doesn't sell, recommend or adjust medication or hormones, and it doesn't connect you to prescribers or pharmacies.
• It doesn't calculate or suggest doses, and it doesn't convert between mg, units and mL. It logs what your doctor prescribed and what you took.
• It doesn't promise how much weight you'll lose.
• It doesn't replace your doctor, dietitian or pharmacist.

Brands

Leve is independent and not affiliated with any drug maker. Ozempic®, Wegovy®, Rybelsus®, Saxenda® and Victoza® are trademarks of Novo Nordisk; Mounjaro® and Zepbound® are trademarks of Eli Lilly and Company. They belong to their owners and appear only so you can identify your own treatment.

Who makes Leve

Leve is offered by RK Strategy & Management (Rodrigo Krueger Maia do Amaral), a company registered in Brazil (CNPJ 49.055.084/0001-50), São José dos Pinhais, PR, Brazil. Support: ola@lampadaapp.com. We reply within 2 business days.