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Track protein from your wrist

Log protein, water, lifting and cardio from the watch. A complication puts the day's protein on your watch face, so the number is in front of you before you have opened anything.

The watch app is on Apple Watch, with the iPhone app. Bild Health on Android tracks everything else on this page.

Lose the fat. Keep the muscle.

The Bild Health watch app: protein at 30 of 120 grams, with quick-add chips for 5, 10, 20 and 30 grams

Up to 39% of the weight lost on a GLP-1 is muscle.

[source]

You can lose weight and keep your muscle, and some people even build it. It takes lifting heavy and eating plenty of protein.

Getting ~150 g of protein while eating 1,800 calories is HARD.

Bild Health makes it EASY.

Four registers, one press each.

The watch is where logging either survives contact with a real day or quietly stops. So the wrist app is not a smaller phone app: it is four pages, one per register, with the protein chips set to the same grams as the phone so the tap you already know works on either device.

  • Protein, water, lifting and cardio, each one page and one press
  • Protein quick-adds at 5, 10, 20 and 30 g, matching the phone to the gram
  • A complication puts today's protein on the watch face
  • Chip taps land against the day's targets, in the same record as everything else
The Bild Health watch app: water logged against the day's target, with quick-add chips in ounces
Four registers, one page each

More features to help you hit your goals

1-tap protein logging

Four quick-add chips sized to real food. One tap logs a meal, and the same four sit on your watch.

Bild Health Today screen: protein, water, lifting and cardio against today's targets

Get protein from a photo

Photograph the meal and get the protein in grams, with a range and the items behind the number.

A photographed plate of grilled chicken, rice and broccoli
PROTEIN48 to 62 g

54 g

An estimate, not a measurement. Correct any item and the total follows.

Track fat and muscle

Fat mass and lean mass charted as two separate lines, from a body-composition scale through Apple Health and Health Connect and from imported DEXA scans.

Bild Health Results screen: lean mass holding at goal
Sources and methodology

On the evidence. No randomized trial has tested sleep, protein or training in people taking a GLP-1 specifically. The evidence comes from energy-deficit studies generally, which is exactly why measuring your own result matters. The protein figures come from controlled energy-restriction work in populations that were mostly younger, often trained and often male.

How body composition is measured. From a body-composition smart scale synced through Apple Health and Health Connect, with DEXA scans as checkpoints, imported from a connected BodySpec account or a report PDF from any provider. The scale supplies cadence and the scan supplies the anchor.

Where these numbers come from

  1. 01

    Lean Mass Changes With Incretin Therapy Versus Lifestyle Intervention: A Systematic Review and Meta-Analysis

    Diabetes, Obesity and Metabolism · 2026 · Eisa N, Barood O. Diabetes Obes Metab. 2026;28(6):4818–4827. doi:10.1111/dom.70666. PMID 41877354.

  2. 02

    Effects of high-protein diets on fat-free mass and muscle protein synthesis following weight loss: a randomized controlled trial

    The FASEB Journal · 2013 · Pasiakos SM, et al. FASEB J. 2013;27(9):3837–3847

  3. 03

    Preserving Healthy Muscle during Weight Loss

    Advances in Nutrition · 2017 · Cava E, Yeat NC, Mittendorfer B. Adv Nutr. 2017;8(3):511–519

Know what you are losing.

Bild Health keeps fat mass, lean mass, protein, training and your dose history in one record. The lean number is measured from your scale, anchored by imported DEXA scans.

Lose the fat. Keep the muscle.