How Much Protein Do You Actually Need on a GLP-1?

Your protein needs go up right when eating gets hard

When you lose weight, some of what comes off is muscle. That has been true of every method there has ever been — it isn’t something your medication is doing to you.

What’s different now is the volume. When you were eating three full meals, you could land on a decent protein number by accident. Eggs at breakfast, chicken in a salad, whatever was on the plate at dinner. It added up without you thinking about it.

Four bites at a sitting doesn’t add up to anything by accident.

Eating enough protein, alongside moving your body in ways that make your muscles work, is the best-supported thing you can do to help protect the muscle you already have while everything else changes. It isn’t a guarantee. Nothing is. But it’s the lever with the most evidence behind it and the one entirely in your hands.

There’s a second reason, and it’s the one you’ll notice first. Protein is what stops the four-o’clock crash — that flat, foggy, why-am-I-like-this feeling that a lot of us spent our first months blaming on the medication. Sometimes it is the medication. Often it’s that you had a rice cake at eleven.

By the numbers

• 0.6–0.8gof protein per pound of goal weight, the range dietitians publish
• 90–120ga day for most women aiming at 150 pounds
• 25–40%of weight lost this fast can be lean mass in the trials — protein and strength work are how you protect your share

Lean-mass share: STEP-1 and SURMOUNT-1 body-composition substudies and subsequent meta-analyses, which report a range of roughly 25 to 40 per cent depending on the trial. Protein and resistance work help protect lean mass; nothing prevents the loss entirely.

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Work out your number

Use your goal weight, not your current weight. It’s the smaller number and it’s the one your body is heading toward.

Multiply it by 0.6 for your floor and 0.8 for your ceiling.

So if you’re aiming at 150 pounds: 150 × 0.6 = 90g, and 150 × 0.8 = 120g. Your range is 90 to 120 grams a day.

Start at the floor. If you’ve been getting 40g on a good day — and plenty of us were — then 90 is already a serious change. Chasing 120 in week one is how you end up resenting the whole thing by week three.

Get to the floor consistently for a fortnight, then decide whether you want more.

And if you don’t have a goal weight in mind, or the idea of picking one makes you tired, use the weight you were at when you last felt strong. The formula doesn’t care why you chose the number.

• Low gear 9 bites · 44g

  Shot day. A shake and some turkey from the packet, and that is a fine day.

• Mid gear 18 bites · 98g ×17

  Four sittings. The biggest one before eight in the morning.

• High gear 22 bites · 115g ×20

  The good week. This is the day you get ahead for the ones that follow.

Low gear, 9 bites, 44 grams. Mid gear, 18 bites, 98 grams. High gear, 22 bites, 115 grams.

All three are fine. The week is the unit, not the day.

What 90 grams actually looks like

Grams on their own don’t mean much until you can see them. Here’s what they cost you in bites, which is the currency that matters now.

• Whey powder in milk 5.0g
• Greek yogurt, plain 5% 4.3g
• Cottage cheese, 4% 4.3g
• Rotisserie chicken thigh 4.2g
• Smoked salmon 3.7g
• Eggs, soft-scrambled 3.0g
• Toast, one slice 0.75g

Protein per bite: whey powder in milk 5.0 grams, Greek yogurt 4.3, cottage cheese 4.3, rotisserie chicken thigh 4.2, smoked salmon 3.7, soft-scrambled eggs 3.0, one slice of toast 0.75 grams.

Toast is on here on purpose. It takes up four bites of room and pays 3g for them. Nothing on this chart is forbidden — it is just that some bites cost more than they return.

• Greek yogurt, plain 5%

  ¾ cup

  Protein17g Bites4 Per bite4.3g

• Rotisserie chicken thigh

  3 oz, skin off

  Protein21g Bites5 Per bite4.2g

• Cottage cheese, 4%

  ½ cup

  Protein13g Bites3 Per bite4.3g

• Eggs, soft-scrambled

  2 large, with butter

  Protein12g Bites4 Per bite3.0g

• Smoked salmon

  2 oz

  Protein11g Bites3 Per bite3.7g

• Whey powder in milk

  1 scoop, 6 oz milk

  Sipped, not chewed. Different rules.

  Protein30g Bites6 Per bite5.0g

Look at the bottom row of each card rather than the top. A slice of toast is about 3g and takes up four bites of room. Half a cup of cottage cheese is 13g and takes three.

Both are true. Only one of them is useful to you now.

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Front-load it, because the morning is the easy part

For most people on these medications, appetite runs on a slope. It’s at its most cooperative in the first few hours after waking and it drains through the day. By seven in the evening the ick has often arrived, and the thing you carefully planned for dinner is suddenly unthinkable.

So spend your appetite while you have it. That’s what appetite gears means: the same person has a different ceiling at eight in the morning and eight at night.

110g55g0

Target 90g 2pm

1. 7:3041g
2. 11:3060g
3. 15:0074g
4. 18:3095g

By two in the afternoon this day has banked 60g of its 95g. The evening only has to find 21g, which is one sitting you can manage even when the appetite has gone.

This is also the honest argument for a savoury breakfast. Cereal, toast and fruit are all things you can get down easily, and between them they might be 8g. Two eggs and a spoon of cottage cheese are 25g and take up about the same room.

Same effort, three times the return, banked before the day has a chance to go sideways. If mornings are your worst window rather than your best, the grab-and-go protein snacks are a better place to start than forcing eggs.

Protein you eat at eight in the morning is protein you can’t fail to eat at eight at night.

A day that actually gets there

Here’s an ordinary Tuesday. Nothing clever, nothing you’d shop specially for, no sitting longer than five bites.

• Greek yogurt, ¾ cup17g
• One scoop of whey24g
• Six raspberries0g

5 bites · 41g · 8.2g per bite

The densest sitting of the day, and the easiest one to actually eat.

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When a shake is the right answer

A shake is 25 to 30 grams that requires no chewing, no cooking, no smell, and no decision. On a day when the kitchen is hostile, that isn’t a compromise. It’s the correct tool.

Three things worth knowing. Look for at least 25g a scoop, because a lot of what’s on the shelf is 15g and a great deal of sugar. Mix it into something with a bit of fat — milk, or stirred through yogurt — which sits better than water for most people and turns one sitting into real numbers. And keep a couple of ready-made bottles cold, for the mornings you open the fridge and immediately close it again.

The caveat, said once and dropped: whole food brings things a powder doesn’t — fibre, iron, fat, the act of chewing. Use shakes where they help; don’t build the whole day out of them.

The days you get nowhere near it

You’re going to have them. Shot day, a bad week, a stretch where every food you think of is faintly repulsive. On those days you might get 40g, and no plan was going to change that.

Three rules for a bad day, and then stop thinking about it.

• Pick one thing and make it the highest-value thing you can stand. Three bites of cottage cheese beats three bites of crackers.
• Drink it if you can’t chew it. A cold shake goes down when nothing else will.
• Don’t make it up tomorrow. Forcing 140g on Wednesday to atone for Tuesday just gives you two bad days instead of one.

The week is the unit, not the day. Four solid days and three ragged ones is a good week. That’s what most of mine look like, fourteen months in, and I write about this for a living.

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