For weight-loss injections and weight-loss pills

Nutrition for your GLP‑1 therapy.

During your GLP‑1 therapy with a weight-loss injection or weight-loss pill, you eat less but still need just as many nutrients. GLYN helps you stay well nourished throughout your therapy, simply and backed by science.

Find your needsOrder GLYN
Protein, fiber, vitaminsin one routine
2 componentsPowder and capsule
€2,10 per day€63,20 with the monthly subscription
What changes

Less hunger. Your body still needs everything.

Weight-loss injections and weight-loss pills, in other words GLP-1 medications, make you feel full sooner. That helps with losing weight. At the same time, it gets harder to eat enough of what your body needs from small meals.3

Proteinfor your muscles
Fiberfor digestion
Vitaminsand minerals
Trial data

Gastrointestinal complaints are common. Most are mild and pass.

STEP 1 trial · semaglutide 2.4 mg per week · 1,961 adults · 68 weeks

SemaglutidePlacebo
Nausea
44.2%
17.4%
Diarrhea
31.5%
15.9%
Vomiting
24.8%
6.6%
Constipation
23.4%
9.5%

Complaints like these change when and how much you eat. That is exactly where GLYN comes in: with a routine that doesn't depend on hunger.

Source

Wilding JPH et al. N Engl J Med 2021;384:989–1002 (STEP 1). Share of participants with at least one event.

Wharton S et al. Diabetes Obes Metab 2022;24:94–105. Events were mostly mild to moderate and transient.

Applies only to this study, this active ingredient and this dose.

Keep your muscles in mind

Lose weight. Keep your muscles.

When you lose a lot of weight, you don't just lose fat. Enough protein and regular strength training help preserve muscle. This becomes even more important with age.37

Trial data

What the weight loss was made of

STEP 1 substudy · semaglutide 2.4 mg · measured by body scan

FatLean mass, incl. muscle
Recommendation
0.8 gprotein per kg of body weight, adults
1.0 gprotein per kg of body weight, age 65 and over
Sources

Wilding JPH et al. N Engl J Med 2021 and J Endocr Soc 2021;5(Suppl 1):A16. 140 participants, 95 of them on semaglutide. Proportions as reported in Mozaffarian D et al. Obesity 2025.

German Nutrition Society (DGE), reference values for protein (2017).

Lean mass includes muscle, water and organs. The proportion varies from person to person.

Adaptive Nutrition

Nutrition that adapts to your therapy.

01

Find your needs

A few questions about your phase, appetite and daily routine.

02

Set targets

How much protein, fiber and vitamins you need.

03

Nourish daily

Shake and capsule at set times.

04

Adjust

New phase, less appetite? Simply check your needs again.

Find your needs
How GLYN was developed

First the problem. Then the formula.

No trendy ingredients. Every component is there for a clear reason.

On GLP-1Eating less often means less protein.
GLYN25 g plant protein from pea and rice
GuidelineSources
On GLP-1Smaller portions provide less fiber.
GLYN5 g soluble fiber, well tolerated
GuidelineSources
On GLP-1Fewer calories, fewer vitamins.
GLYNTargeted vitamins and minerals, no megadoses
GuidelineSources
Strength trainingMuscles need training.
GLYN3 g creatine per serving, alongside your training
AuthoritySources

Vegan · gluten-free · lactose-free · free from the 14 major EU allergens · all amounts below the BfR maximum levels

The daily GLYN Protocol

Two components. One simple routine.

The practical foundation of your nutrition for as long as you're taking a weight-loss injection or weight-loss pill.

In the morning or in betweenGLYN Powder in its pouch

GLYN Powder

As a shake, when your meals get smaller.

25 gProtein
5 gFiber
3 gCreatine
With lunchGLYN micronutrients in the tin

GLYN Capsule

Selected vitamins and zinc, once a day.

D320 µg
B1225 µg
+ 3B1, folate, zinc
In everyday life

Your day with GLYN.

GLYN ShakeDrink it slowly
GLYN CapsuleWith lunch
DinnerAs the last meal of the day
Drink enough1.5 to 2 liters
For every GLP‑1 therapy

Whatever your medication. GLYN fits in.

Whether it's a weight-loss injection, a weight-loss pill or another GLP‑1 medication, and no matter the manufacturer: GLYN is designed around your nutrition during this therapy. What matters isn't the medication, but that you're eating less and still want to stay well nourished.

  • Weight-loss injection
  • Weight-loss pill
  • All GLP‑1 medications
  • All manufacturers
  • Every therapy phase
Science

Well-founded. And easy to look up.

Every number on this page has a source.

Study

Muscle during weight loss

When you lose a lot of weight, you also lose muscle. Protein and strength training help counter this.

Sources

Wilding et al., J Endocr Soc 2021

Cava et al., Adv Nutr 2017

Mozaffarian et al., Obesity 2025

Guideline

Fiber

At least 30 g a day is recommended. That's hard with small portions.

Sources

DGE, reference value for fiber

Wilding et al., NEJM 2021

Consensus

Vitamins when eating less

Professional societies advise watching out for nutrient deficiencies on GLP-1.

Sources

Mozaffarian et al., Obesity 2025

BfR, proposed maximum levels

Consensus

Nutrition on GLP-1

Four US professional societies recommend actively supporting nutrition during therapy.

Sources

Mozaffarian et al., Obesity 2025

Authority

Creatine

Daily creatine consumption can enhance the effect of resistance training on muscle strength in adults aged 55 and older. The beneficial effect is obtained with a daily intake of 3 g of creatine in conjunction with resistance training.

Sources

Commission Implementing Regulation (EU) 2017/672

Kreider et al., JISSN 2017

Guideline

Protein with age

From age 65, experts recommend more protein than for younger adults.

Sources

DGE, reference values for protein

Bauer et al., JAMDA 2013 (PROT-AGE)

Order GLYN

Well nourished through your therapy.

GLYN pouch, tin and glass bottle with a shake
Monthly box · 30 days

GLYN® Daily Essentials

€63,20with the monthly subscription · €2,10 per day

One-time purchase €79,00. Subscription with no minimum term, cancel anytime before your next delivery. Final prices incl. 7% VAT.

  • GLYN Powder, 30 servings
  • GLYN Capsules, 30 capsules
  • Free shipping across Europe, €19.90 worldwide
  • 3-month money-back guarantee
Order GLYNFind your needs first

Frequently asked questions

Is GLYN for the weight-loss injection or the weight-loss pill?

Both. The injection and the tablet are both GLP‑1 medications and curb appetite in a similar way. GLYN is a food supplement and can be used regardless of the medication.

What does GLP‑1 mean?

GLP‑1 is a hormone your body makes in the gut that signals fullness to the brain. Weight-loss injections and weight-loss pills mimic its effect. That's why they're referred to as GLP‑1 medications or GLP‑1 therapy.

Does GLYN treat side effects?

No. GLYN is a food supplement and helps you keep a structured diet. If you have any complaints, please talk to your doctor.

Does GLYN replace my meals?

No. GLYN supplements your diet when your meals get smaller.

How do I get started?

For the first one to two weeks, start with half a serving of powder. Take the capsule once a day right from the start.

Do I still need exercise?

Yes. Strength training is important for maintaining muscle. Protein supports this but doesn't replace it.

Is GLYN vegan?

Yes. GLYN is vegan, gluten-free, lactose-free and free from the 14 major EU allergens.

Your therapy. Your nutrition.

Find out what you need while on a weight-loss injection or weight-loss pill.

Find your needsOrder GLYN
Show all sources
  1. [1]Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity. N Engl J Med 2021;384:989–1002. doi:10.1056/NEJMoa2032183
  2. [2]Wharton S, et al. Gastrointestinal tolerability of once-weekly semaglutide 2.4 mg in adults with overweight or obesity. Diabetes Obes Metab 2022;24(1):94–105. doi:10.1111/dom.14551
  3. [3]Mozaffarian D, et al. Nutritional priorities to support GLP-1 therapy for obesity: A joint Advisory (ACLM, ASN, OMA, TOS). Obesity 2025;33(8):1475–1503. doi:10.1002/oby.24336
  4. [4]Wilding JPH, et al. Impact of Semaglutide on Body Composition: Exploratory Analysis of the STEP 1 Study. J Endocr Soc 2021;5(Suppl 1):A16–A17.
  5. [5]German Nutrition Society (DGE). Reference values for protein (2017). dge.de
  6. [6]German Nutrition Society (DGE). Reference value for fiber (≥ 30 g/day). dge.de
  7. [7]Bauer J, et al. Evidence-Based Recommendations for Optimal Dietary Protein Intake in Older People (PROT-AGE). J Am Med Dir Assoc 2013;14(8):542–559. doi:10.1016/j.jamda.2013.05.021
  8. [8]Cava E, Yeat NC, Mittendorfer B. Preserving Healthy Muscle during Weight Loss. Adv Nutr 2017;8(3):511–519. doi:10.3945/an.116.014506
  9. [9]German Federal Institute for Risk Assessment (BfR). Proposed maximum levels for vitamins and minerals in food supplements.
  10. [10]Regulation (EU) No 432/2012, authorised health claims.
  11. [11]Commission Implementing Regulation (EU) 2017/672 authorising a health claim relating to creatine. Kreider RB, et al. ISSN exercise & sports nutrition review update: research & recommendations. J Int Soc Sports Nutr 2017;14:18. doi:10.1186/s12970-017-0173-z

GLYN is a food supplement. It is not intended to treat or prevent any disease and is not a substitute for medical advice. Study data apply only to the study named in each case. GLYN was not involved in any of the studies cited.