GLP-1 Companion (Muscle Preservation)
About this protocol
Where to start
Resistance training is non-negotiable. Without it, 30-40% of your weight loss will come from muscle — and you''ll regain it as fat when you eventually come off the medication. 2-3 strength sessions weekly is the bare minimum.
Whey protein (or plant equivalent) is the foundation. Aim for 1.4-1.6 g/kg body weight daily — higher than the general population because food intake is reduced. Most GLP-1 users find protein shakes more tolerable than solid protein at meals.
Add creatine monohydrate at 3-5 g daily. Maximally evidenced for muscle preservation during weight loss when combined with resistance training.
Add electrolytes (sodium + potassium + magnesium). GLP-1 users frequently lose more fluid than expected due to reduced thirst signals and reduced food-water content. Dehydration drives many of the "tired/dizzy/headache" complaints on these medications.
Add a methylated B-complex for the energy and nutrient gaps that come with eating 30-50% less food. B12 deficiency is particularly common.
If you''re experiencing severe nausea, persistent vomiting, signs of dehydration, or sudden hair shedding — talk to your prescriber. Many of these can be addressed with dose adjustment or supportive treatment.
4 nutrients
Start here
Strongest evidence — the foundation of the stack.
Whey Protein (or Plant Equivalent)
20-40 g per shake, aim for 1.4-1.6 g/kg body weight daily totalWhey protein has the highest leucine content of common protein sources, maximally stimulating muscle protein synthesis. Critical during GLP-1-induced caloric deficit to preserve lean mass. The reduced appetite on GLP-1s makes shakes more tolerable than solid food for many users. Plant alternatives (pea, soy, blends) work but require slightly higher doses for equivalent leucine content.[1, 2, 3]
Creatine Monohydrate
3-5 g daily, anytimeCreatine maximally evidenced for muscle preservation during weight loss when combined with resistance training. Hundreds of trials in sports nutrition support strength, power, and lean mass benefits. Particularly relevant during GLP-1 weight loss to maximize the muscle-preserving effect of resistance training. Monohydrate is the only form with substantive evidence; more expensive forms have no demonstrated advantage.[4, 5, 6]
Add if needed
Add these only if the foundation isn't enough.
Electrolyte Blend (Sodium + Potassium + Magnesium)
1-2 servings daily; more on workout days or hot climatesGLP-1 medications reduce thirst signals and reduce food-related water intake. Dehydration is one of the most common under-recognized causes of GLP-1 side effects (fatigue, dizziness, headaches, constipation, muscle cramps). A balanced electrolyte mix (sodium 500-1000 mg, potassium 200-400 mg, magnesium 50-100 mg per serving) addresses this directly.[7, 8, 9]
Methylated B-Complex
1 capsule daily, with breakfastReduced food intake on GLP-1s produces nutritional gaps disproportionately in B vitamins, particularly B12 (already commonly low in adults over 50). Methylated forms (methylfolate, methylcobalamin) bypass MTHFR enzyme variants. Helps address the fatigue and hair-shedding common in GLP-1 users.[10, 11]
Warnings
Lifestyle improvements
Resistance training is the most important intervention
Without it, ~30-40% of GLP-1 weight loss is lean mass. Heavy resistance training 2-3× weekly preserves muscle and shifts the body composition of weight loss dramatically. Even bodyweight squats, push-ups, and resistance bands work.
Protein intake matters more on GLP-1s than off
Aim for 1.4-1.6 g/kg body weight daily — higher than the general population because total caloric intake is reduced. Most GLP-1 users find this requires protein shakes or supplemental sources.
Eat real food when you can
The natural reduction in appetite on GLP-1s is helpful for weight loss but can produce nutrient gaps. Prioritize protein, fiber, and micronutrient-dense foods when you do eat. Don''t waste calories on ultra-processed snacks.
Hydrate aggressively
GLP-1s blunt thirst signals. Most users need to consciously drink water on a schedule rather than waiting for thirst. 2-3 L daily is a reasonable target, plus electrolytes.
Address constipation
GLP-1s slow gastric emptying, which produces constipation in many users. Magnesium glycinate, adequate fiber, and adequate water address this directly. See the Constipation Support protocol for more.
Hair shedding is common but usually temporary
Rapid weight loss on any protocol produces telogen effluvium (diffuse hair shedding) 2-3 months in. The Hair Loss Support — Women protocol stacks on top of this one if needed.
Don''t white-knuckle nausea
Severe persistent nausea isn''t normal even on GLP-1s. Your prescriber may slow titration, lower dose, or add anti-nausea medication. Don''t suffer through it.
Plan for after-GLP-1
Maintenance is the hardest part. The behaviors built during weight loss (resistance training, protein intake, hydration, healthy eating) need to continue or weight regain is the norm. Maintenance medication doses are increasingly common.
Get periodic labs
HbA1c, fasting glucose, lipid panel, CBC, ferritin, vitamin B12, vitamin D, and thyroid panel every 6 months. Catches the silent nutritional gaps that develop.
Strength training over cardio
If you must choose one form of exercise, choose resistance training. Cardio is supportive; resistance training is essential for muscle preservation.
References
- Whey protein — supplement research overviewExamine.com link
- Cermak NM, et al. Protein supplementation augments the adaptive response of skeletal muscle to resistance-type exercise training: a meta-analysis. Am J Clin Nutr. 2012;96(6):1454-1464.PubMed link
- Morton RW, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. Br J Sports Med. 2018;52(6):376-384.PubMed link
- Creatine — supplement research overviewExamine.com link
- Kreider RB, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.PubMed link
- Candow DG, et al. Effectiveness of creatine supplementation on aging muscle and bone: focus on falls prevention and inflammation. J Clin Med. 2019;8(4):488.PubMed link
- Sodium — supplement research overviewExamine.com link
- Weaver CM. Potassium and health. Adv Nutr. 2013;4(3):368S-377S.PubMed link
- Schwalfenberg GK, Genuis SJ. The Importance of Magnesium in Clinical Healthcare. Scientifica. 2017;2017:4179326.PubMed link
- B-vitamins — supplement research overviewExamine.com link
- Kennedy DO. B Vitamins and the Brain: Mechanisms, Dose and Efficacy — A Review. Nutrients. 2016;8(2):68.PubMed link
Related protocols
Other metabolic protocols and protocols sharing ingredients with this one.
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metabolic
Insulin resistance is upstream of nearly every chronic disease that kills modern adults: type 2 diabetes, cardiovascular disease, fatty liver, cognitive decline, certain cancers. The good news is it''s one of the most reversible metabolic states — with lifestyle change being the strongest lever (Diabetes Prevention Program: 58% reduction in progression to diabetes vs. 31% for metformin). The supplement category has genuine evidence: berberine produces effects comparable to metformin for HbA1c and fasting glucose; chromium and alpha-lipoic acid improve insulin sensitivity; cinnamon (Ceylon variety) modestly reduces post-meal glucose spikes; magnesium corrects a commonly low cofactor in insulin signaling. This stack is for adults with elevated fasting glucose, elevated HbA1c, elevated fasting insulin, or known insulin resistance — including those with PCOS, prediabetes, or metabolic syndrome. It complements lifestyle change rather than substituting for it. If your HbA1c is over 6.5% or your fasting glucose is over 126 mg/dL, you have type 2 diabetes — that''s a medical condition that warrants proper management, not solo supplementation.
GLP-1 Support (Natural)
metabolic
GLP-1 (glucagon-like peptide-1) is the hormone behind the medications driving the 2025-2026 weight-loss revolution. Some natural compounds modestly support endogenous GLP-1 release, glucose handling, and satiety — they are not substitutes for prescription GLP-1 agonists, but they can be a starting point for metabolic health support or a complement to lifestyle change. Berberine has the strongest evidence and is sometimes called "nature's metformin" (not Ozempic — the comparison is exaggerated). Soluble fiber works through gastric emptying and direct GLP-1 stimulation. Cinnamon and apple cider vinegar have smaller, supporting roles for postprandial glucose.
Pre-Diabetes Reversal
metabolic
Pre-diabetes (fasting glucose 100-125 mg/dL, or HbA1c 5.7-6.4%) affects roughly 1 in 3 American adults — most of whom don''t know they have it. The good news: pre-diabetes is one of the most reversible conditions in medicine, with the Diabetes Prevention Program trial showing 58% reduction in progression to type 2 diabetes through lifestyle change alone (better than metformin''s 31%). Without intervention, 15-30% of people with pre-diabetes progress to type 2 diabetes within 5 years. This stack supports the underlying insulin resistance pathway: berberine for AMPK activation and insulin sensitization, alpha-lipoic acid for insulin sensitivity, chromium and magnesium as cofactors, vitamin D for insulin secretion support. This is a structured 6-12 month reversal protocol, not lifelong supplementation. The goal is to get HbA1c under 5.7% and fasting glucose under 100 mg/dL through stack + lifestyle, then transition to maintenance.
Post-Workout Recovery
recovery· 2 shared ingredients
Recovery determines your next training session, not the workout you just finished. The best-evidenced supplemental levers are unglamorous: enough protein to drive muscle protein synthesis, creatine to maintain phosphocreatine stores, and a small set of anti-inflammatory aids for high-volume blocks or competition stretches. This protocol assumes you are training consistently — three or more sessions per week — and want to recover better between them. If you train less, the protein you eat at meals is sufficient.
Metformin Companion
medication· 1 shared ingredient
Metformin is the most-prescribed type 2 diabetes medication and is increasingly used off-label for prediabetes, PCOS, and even longevity research. The catch: long-term metformin use is associated with vitamin B12 deficiency in 5-30% of users — the exact mechanism involves reduced B12 absorption in the small intestine. B12 deficiency on metformin develops slowly (typically 4+ years of use) and produces fatigue, cognitive symptoms, and peripheral neuropathy — symptoms commonly misattributed to diabetes itself. Metformin also modestly affects folate and CoQ10, and magnesium supplementation may enhance metformin''s metabolic effects. This protocol is for adults ACTIVELY on metformin (any indication: T2DM, prediabetes, PCOS, or off-label use). CRITICAL: this protocol does NOT replace metformin. The supplements address downstream nutritional effects. The American Diabetes Association recommends periodic B12 testing for long-term metformin users — particularly in adults over 50, vegetarians/vegans, and those with neurological symptoms. Don''t skip B12 monitoring.
Birth Control Companion
medication· 1 shared ingredient
Combined oral contraceptives (estrogen + progestin) are one of the most-prescribed medications globally, with hundreds of millions of users. Long-term use is documented to deplete several nutrients: B6, B12, folate, magnesium, zinc, CoQ10, and vitamin C — with the depletion mechanism varying by nutrient (some via altered absorption, others via increased turnover). The clinical relevance: depleted B vitamins are implicated in oral contraceptive-related mood changes, fatigue, headaches, and elevated homocysteine. Magnesium depletion may contribute to migraines and PMS-like symptoms common in pill users. This protocol is for women ACTIVELY on combined oral contraceptives, progestin-only pills, or other hormonal contraceptives (patch, ring, implant, IUD with hormone, injection). It''s NOT for non-hormonal IUDs (copper) or barrier methods. CRITICAL: this protocol does NOT advise stopping contraception. It supports nutritional status while you''re on hormonal birth control. If you''re experiencing mood changes, fatigue, headaches, or other side effects you suspect are pill-related, this stack may help — but also consider discussing alternative formulations or methods with your prescriber. Different pills affect different women differently.
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Coming to App StoreDisclaimer: These statements have not been evaluated by the FDA. This protocol is educational, not a substitute for personalized medical advice. Talk to your doctor before starting any new supplement regimen — especially if you're pregnant, breastfeeding, on medications, or managing a chronic condition. Last updated 5/20/2026.