GLP-1 After 65: How to Eat to Protect Muscle in the Medicare GLP-1 Bridge Era

Adults over 65 starting a GLP-1 medicine should protect muscle as they lose weight. The 2025–2030 Dietary Guidelines recommend 1.2 to 1.6 grams of protein per kilogram of body weight per day, spread across meals, though your clinician may adjust this, especially with kidney disease. Research suggests protein alone may not prevent lean-mass loss, so pair it with clinician-approved strength exercise. Medicare's GLP-1 Bridge offers eligible beneficiaries certain GLP-1s for $50 a month with Part D coverage.

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By SmashMeals Editorial · Published · Updated

Thanks to Medicare's $50-a-month GLP-1 Bridge, many adults 65 and older are starting a weight-loss medication for the first time. These medicines can help with weight and related health conditions. They also shrink appetite, and at an age when muscle is already harder to keep, eating too little protein can work against you. Here is how to eat to protect strength while the scale moves.

This guide is general information, not medical or insurance advice. Your prescriber and care team should set your targets, especially if you have kidney disease.

Why muscle matters more after 65

Adults gradually lose muscle and strength with age. When anyone loses weight, part of what they lose is lean mass, not just fat. For an older adult, losing too much muscle can affect balance, walking speed, the ability to get out of a chair and the risk of falls. The goal is to lose fat while keeping as much strength as possible.

The new Medicare GLP-1 Bridge, in brief

Since July 1, 2026, the Medicare GLP-1 Bridge has let eligible beneficiaries with obesity get Foundayo, Wegovy or the Zepbound KwikPen for $50 a month. You need Medicare Part D drug coverage and must meet BMI and health criteria. People with type 2 diabetes, moderate-to-severe sleep apnea or fatty liver disease are not eligible for the Bridge because those uses are handled through Part D. Medicare open enrollment runs October 15 to December 7, 2026. Read our news coverage.

Protein: how much and when

The 2025–2030 Dietary Guidelines for Americans recommend 1.2 to 1.6 grams of protein per kilogram of body weight per day, with protein foods at every meal. Your clinician may set a different number, especially if you have kidney disease.

Body weightWeight in kg1.2–1.6 g/kg per dayPer meal, over 3 meals
150 lb68 kg82–109 g27–36 g
180 lb82 kg98–131 g33–44 g
210 lb95 kg114–152 g38–51 g
240 lb109 kg131–174 g44–58 g

These numbers are a reference for a conversation with your care team, not a prescription. On a GLP-1, many people cannot eat this much at first. Spreading protein across meals and snacks, and choosing protein first on the plate, usually helps.

Protein alone is not enough

A 2026 randomized trial in older men, published in Nutrients, found that adding extra protein or leucine during four weeks of alternate-day fasting did not prevent lean-mass loss compared with a control drink. The authors suggested resistance training may be needed alongside nutrition. Read our news coverage.

Strength work does not mean a gym membership. Chair stands, wall push-ups, resistance bands and carrying groceries all count. Ask your clinician or a physical therapist what is safe for you, and start gently.

Practical eating tips for a smaller appetite

ChallengeWhat can help
Full after a few bitesEat the protein first; use smaller plates and portions
NauseaSmaller, more frequent meals; avoid very greasy or rich food; ask your prescriber
Forgetting to eatSet meal times; keep ready-to-eat protein on hand
ConstipationAdd fiber gradually and drink more fluids
DehydrationSip fluids through the day; older adults may not feel thirsty
Cooking feels like too muchPortioned, ready-to-heat meals with posted nutrition

Good protein sources that are easy to eat include eggs, Greek yogurt, cottage cheese, fish, tender chicken or turkey, beans and lentils. Our guide to closing the fiber gap explains how to add fiber without discomfort.

Questions to bring to your next appointment

Make the eating part easier

When appetite is small and energy is limited, the hardest part is often just having the right food ready. SmashMeals makes portioned, protein-forward meals with posted nutrition, so you can see the protein in each one. Meals come from our dedicated gluten-free kitchen in Kingsport, with free pickup, local delivery and shipping to eligible addresses, and no subscription required.

See our meals for seniors, protein-first meals for smaller appetites and this week's menu.

Sources

Frequently asked questions

How much protein should I eat on a GLP-1 after 65?
The 2025–2030 Dietary Guidelines recommend 1.2 to 1.6 grams per kilogram of body weight per day for adults. For a 180-pound person that is about 98 to 131 grams. Your care team should set your target.
Does protein alone protect muscle on a GLP-1?
Protein helps, but research suggests it works best with resistance exercise. A 2026 trial in older men found extra protein alone did not prevent lean-mass loss during fasting-based weight loss.
What is the Medicare GLP-1 Bridge?
A CMS program that began July 1, 2026, letting eligible beneficiaries with obesity get Foundayo, Wegovy or the Zepbound KwikPen for $50 a month with Part D coverage.

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