Written by: Ryan Gardner, Owner, Managing Partner, CEO, Bucked Up

Key Takeaways

• People using GLP-1 medications often fall short on protein, averaging 53.8 g per day, with many skipping meals.

• Consistent protein intake helps preserve muscle, support organs and bones, and maintain metabolism during weight loss.¹

• Thick, milky shakes can feel heavy when appetite is low, while lighter formats are often easier to finish.

• Ready-to-drink options that provide 20 to 30 g of protein with minimal calories and carbs can support daily goals.¹

• Explore a lighter way to hit your protein targets with Bucked Up Protein Soda.

The Problem: Getting Enough Protein When You Do Not Feel Like Eating

Many people on GLP-1 medications notice the same pattern. Appetite drops, meals get smaller, and hitting a daily protein target starts to feel like a part-time job. A real-world study of 116 adults using GLP-1 receptor agonists found average daily protein intake of just 53.8 g, with 88% falling below national recommendations. Participants skipped breakfast on 31% of days, lunch on 31% of days, and dinner on 40% of days, which sharply reduces the number of chances to get protein in.

A higher-protein diet supports fat-free mass during weight loss, including muscle, bone, and organs. This support helps maintain a higher metabolism than would occur if muscle were lost.¹ Adequate protein intake signals the body to repair and maintain muscle and helps preserve resting metabolic rate during weight loss.¹

Knowing protein matters is one thing. Finding a format that sounds appealing when appetite is already low is another. Traditional milky protein shakes feel thick and heavy by design, which can be unappealing when fullness hits quickly and food aversions show up. A lighter, ready-to-drink format like Bucked Up Protein Soda aims to fill that gap with 25 g of whey protein isolate, 100 calories, zero sugar, zero carbs, and zero caffeine in a lightly carbonated, clear beverage that drinks more like a soda than a shake.

Find your flavor and start hitting your protein goals with less effort.

Why Ready-to-Drink Protein Can Feel Easier on a Low Appetite

The ready-to-drink (RTD) protein category exists for a simple reason. Not everyone wants to blend a shake, deal with a chalky aftertaste, or feel like they just drank a full meal. Clinical guidelines for people managing weight often highlight protein-fortified shakes and drinkable protein formats as a practical way to support daily protein targets when appetite is reduced.

When you evaluate any RTD protein option, start with the nutritional basics: protein per serving, total calories, and sugar and carbohydrate content. Then look at how your body may handle it, since digestibility matters when appetite is already compromised. Finally, consider the real-world factors that affect whether you will actually drink it consistently, including mouthfeel and texture, caffeine content, and how easy it is to grab on the go. A format that tastes good and feels light is one you are more likely to reach for day after day.

How to Choose a Lighter Protein Option That Fits Your Day

Support for daily protein intake.* Look for options that provide 20 to 30 g of protein per serving. OSF HealthCare dietitians recommend protein powders and supplements in that range with limited added sugars as a convenient supplement choice. Bucked Up Protein Soda delivers 25 g of whey protein isolate per can, which sits squarely in that range.*¹

Any-time-of-day use. Caffeine-free formats remove timing constraints. You do not have to worry that a late-afternoon or evening can will interfere with sleep. For adults managing reduced appetite across the full day, that flexibility is practical and supports more consistent protein distribution.

On-the-go convenience. A ready-to-drink can requires no prep. There is no blender, no powder, and no cleanup. Experts note that GLP-1 users often miss breakfast, which makes easy, drinkable protein formats especially useful for hitting daily targets. The same logic applies to busy professionals and parents who live with a compressed eating window.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Clear Carbonated Protein vs Traditional Milky Shakes

The difference between a carbonated clear protein beverage and a traditional milky shake goes beyond appearance. Format affects mouthfeel, digestibility, and overall enjoyment, which all matter when appetite is already working against you.

Clear protein drinks made from whey protein isolate mix into a transparent, juice-like beverage instead of a thick, creamy shake. They have become popular among people who do not tolerate dense dairy-based shakes because the lighter mouthfeel may reduce feelings of fullness or heaviness. Whey protein isolate also contains minimal lactose compared to traditional whey concentrates, which can make it easier to digest for people sensitive to lactose.

GLP-1 medications can change taste preferences. People often become more sensitive to sweetness and less interested in high-fat foods, which increases demand for lighter protein formats instead of traditional milky or heavy shakes. A carbonated, clear beverage with zero sugar and zero carbs aligns with those shifting preferences.

Traditional milky RTD shakes often contain more calories, more carbohydrates, and a heavier texture. For someone already dealing with reduced appetite, that combination can make consistent daily protein intake harder. The comparison is not about one format always being superior. It is about matching format to your current context. When appetite is low, lighter options often win on long-term adherence.

Research on Protein Needs During Active Weight Management

Guidelines on protein intake during weight management share a common theme, even when exact targets vary by age, activity level, and starting weight. Higher protein intake supports lean mass while calories are reduced.

The American Society for Metabolic and Bariatric Surgery and the Obesity Medicine Association recommend 1.2 to 1.5 grams of protein per pound of ideal body weight daily for adults losing weight, with some experts suggesting up to 2.0 g per lb for people who lift weights regularly. For many adults, that range translates to roughly 60 to 100 g of protein per day, spread across meals instead of taken in a single sitting.

A randomized controlled trial in the FASEB Journal found that consuming protein at twice the RDA during a 21-day energy deficit supported fat-free mass and maintained muscle protein synthesis. Intake at three times the RDA did not provide extra benefit. The practical takeaway is that more protein helps preserve muscle during calorie restriction up to a point, and spreading that protein across three meals or three meals plus a snack works better than front-loading.

Distributing protein across three meals with 25 to 35 g per meal supports muscle protein synthesis more effectively than concentrating most protein at one meal. A single can of Bucked Up Protein Soda fits that per-meal target and can serve as a standalone protein contribution at any point in the day.*¹

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Is a Lighter Protein Format a Good Fit for Your Routine?

A lighter RTD protein format makes sense if several of these statements feel familiar. Traditional milky shakes seem unappealing or too filling. You live with a compressed eating window and want protein options that require no preparation. You prefer a caffeine-free option that works in the morning, afternoon, or evening. You track calories and want a high-protein choice that adds only about 100 calories per can. You like a format that travels easily and does not need refrigeration before opening.

A protein soda also has limits. It does not replace whole-food protein sources when those are accessible and tolerable. It does not serve as medical nutrition therapy. It also does not replace a conversation with your healthcare provider about your specific protein targets, especially if you have kidney concerns, are over 65, or have conditions that affect protein metabolism. People with chronic kidney disease are often advised to limit protein to 0.8 g per lb of body weight or less and to consult a nephrologist before increasing intake.

See if this lighter format works for your compressed eating window.

Conclusion: Match Your Protein Support to Your Appetite and Schedule

Protein intake generally plays an important role during weight management, including for people using Zepbound or experiencing appetite changes for other reasons. Liquid protein formats can serve as practical tools when finishing full meals becomes difficult. The key decision is which format you will comfortably use every day.

For people who find traditional milky shakes heavy, unappealing, or hard to finish, a lightly carbonated, clear whey protein isolate beverage offers a different sensory experience with a comparable protein contribution. No chalk. No milk. A format that fits a busy day without needing a blender or a strong appetite.

Talk with your healthcare provider to set protein targets that fit your health status and goals. Then choose the format that makes hitting those numbers feel simple and repeatable.

Try the carbonated protein format that does not feel like a shake.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Frequently Asked Questions

Can I drink a protein shake every day when my appetite is reduced?

For many healthy adults, a daily protein shake or RTD protein beverage can be a practical way to support protein intake when appetite is lower and whole-food portions feel challenging. The key variables are total daily protein from all sources, overall calorie balance, and how your body tolerates the product. If you have kidney disease or other metabolic conditions, talk with your healthcare provider before making a significant increase in protein through supplements.

How much protein do I need per day during weight management?

Protein needs during weight management depend on body weight in lbs, activity level, age, and health status. Guidance from groups such as the American Society for Metabolic and Bariatric Surgery and the Obesity Medicine Association points to a range of 1.2 to 1.5 grams of protein per pound of ideal body weight daily for adults actively losing weight, which often works out to roughly 60 to 100 g per day. Spreading that intake across three meals, with about 25 to 35 g per meal, supports muscle protein synthesis more effectively than taking most protein at one sitting. Your healthcare provider can help you set a target tailored to your situation.

Why might a carbonated clear protein beverage feel easier to drink than a traditional shake?

Traditional milky protein shakes have a dense texture and can feel filling quickly, which works against consistent use when appetite is already low. Clear protein beverages made from whey protein isolate offer a lighter mouthfeel, lower lactose content, and a format that feels closer to sparkling water or soda than a meal replacement. For people who develop aversions to heavy or rich foods, or who simply dislike thick shakes, the lighter sensory experience of a carbonated clear protein drink can make it easier to finish a full serving and reach a daily protein goal without discomfort.

What makes whey protein isolate different from whey protein concentrate?

Whey protein isolate goes through more filtration than whey concentrate, which produces a purer protein with a higher protein percentage and lower fat and lactose content. The body absorbs whey protein isolate efficiently, and its reduced lactose content can make it a better option for people who are sensitive to lactose or who experience digestive discomfort with concentrate-based products. Bucked Up Protein Soda uses 100% whey protein isolate, not concentrate or collagen, and provides 25 g of protein per can.

Is Bucked Up Protein Soda suitable for use at any time of day?

Yes. Bucked Up Protein Soda is caffeine-free, so it does not carry the timing limits that come with caffeinated protein products or pre-workouts. You can drink it after a workout, as a midday protein boost, or in the evening without affecting sleep or stimulant tolerance. For adults managing reduced appetite across the full day, that flexibility makes it easier to spread protein intake across several smaller windows instead of relying only on traditional mealtimes.

References

Cleveland Clinic Center for Continuing Education. (2023). Muscle mass and protein: Clinical considerations for weight management. https://clevelandclinicmeded.com/showcase/EKCC146/docs/1520_Griebeler_FINAL_muscle%20mass_protein.pdf

Fella Health. (2024). How much protein on Zepbound: ASMBS and OMA recommendations synthesized. https://fellahealth.com/guide/how-much-protein-on-zepbound

EurekAlert. (2025). Real-world protein intake study in GLP-1 receptor agonist users. https://eurekalert.org/news-releases/1123350

Dr. Axe. (2024). Clear protein powder: Benefits, uses, and how it compares. https://draxe.com/nutrition/clear-protein-powder

OSF HealthCare. (2024). How much protein do you really need? https://osfhealthcare.org/blog/how-much-protein-do-you-really-need

Ubie Health. (2024). Lean mass warning: Prioritize protein on GLP-1. https://ubiehealth.com/doctors-note/lean-mass-warning-prioritize-protein-glp-1-57-mass1e10