Compounded
Semaglutide
Any prescribed dose up to 2.5 mg/week
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When you're eating less on semaglutide, getting adequate nutrients becomes crucial. Here's what you need to know about vitamins, supplements, and preventing deficiencies during your weight loss journey.
The most important vitamins while on semaglutide are a quality multivitamin, vitamin B12, vitamin D, and possibly iron (especially for women). Because semaglutide reduces appetite and food intake, you may not get enough nutrients from diet alone. A daily multivitamin provides baseline coverage, while specific supplements address common deficiency risks.
Semaglutide works by reducing appetite and food intake—which is great for weight loss but can create nutritional gaps. When you eat significantly less, you may not get adequate vitamins and minerals from food alone. Additionally, semaglutide slows gastric emptying and may affect nutrient absorption for some people. This makes strategic supplementation important for: • Maintaining energy levels • Supporting metabolism • Preserving muscle mass during weight loss • Preventing deficiency symptoms • Supporting overall health while losing weight
Consider starting supplements when you begin semaglutide, not waiting until you notice deficiency symptoms.
These supplements are most commonly recommended for people on GLP-1 medications:
B12 deserves special attention for semaglutide users: Why it's important: • Essential for energy production • Supports nervous system function • Required for red blood cell formation • May be less absorbed with reduced food intake Signs of deficiency: • Fatigue and weakness • Numbness or tingling in hands/feet • Balance problems • Cognitive difficulties • Mood changes Recommended: 500-1000 mcg daily, or as directed by your healthcare provider. Sublingual (under the tongue) forms may absorb better.
B12 deficiency can develop slowly over months. Proactive supplementation is easier than treating a deficiency.
Many people are already vitamin D deficient, and weight loss can worsen this: Why it's important: • Calcium absorption and bone health • Immune system function • Mood regulation • Muscle function On semaglutide specifically: • Reduced food intake may lower dietary vitamin D • Vitamin D is stored in fat tissue; weight loss releases it but levels still may drop • Important for maintaining bone density during rapid weight loss Recommended: 1000-2000 IU daily for most adults, though some need more. Have your levels tested to know your specific needs.
While not a vitamin, protein is crucial during semaglutide treatment: Why protein matters: • Preserves muscle mass during weight loss • Supports metabolism • Helps maintain strength and function • Promotes satiety with smaller meals Protein targets on semaglutide: • Aim for 0.8-1 gram per pound of ideal body weight • Prioritize protein at each meal • Consider protein supplements if intake is inadequate Protein supplement options: • Whey protein (fast absorbing, complete amino acids) • Plant protein (pea, rice, hemp blends) • Collagen protein (additional benefits for skin, hair, joints)
Many semaglutide users find it easier to drink protein shakes than eat protein-rich foods, especially early in treatment when appetite is very suppressed.
Certain supplements may help manage common semaglutide side effects:
Always inform your healthcare provider about any supplements you're taking. Some can interact with medications or affect certain health conditions.
When you take supplements can affect absorption: With food: • Multivitamins (better tolerated and absorbed) • Fat-soluble vitamins (A, D, E, K) • Iron (with vitamin C for better absorption) • Omega-3s (reduces fishy burps) On empty stomach: • Some B vitamins (though with food is fine too) Separate from medications: • Some supplements should be taken 2+ hours apart from medications • Check with your pharmacist for specific interactions Best practices: • Take consistently at the same time daily • Don't take all supplements at once if taking multiple • Consider morning and evening dosing to spread them out
Watch for these signs that may indicate nutritional deficiencies:
Consider asking your healthcare provider to check vitamin levels (especially B12, D, and iron) periodically during semaglutide treatment.
Not all supplements are equal. Look for: • Third-party testing - USP, NSF, or ConsumerLab verification • Reputable brands - Established companies with good track records • Appropriate forms - Some vitamin forms absorb better than others • No unnecessary additives - Avoid excessive fillers or artificial ingredients • Appropriate dosages - More isn't always better; excessive doses can be harmful Avoid: • Unverified online sellers • Products making exaggerated claims • Extremely cheap supplements (quality costs money) • Products without clear ingredient labeling
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider before starting, stopping, or changing any medication or treatment. Individual results may vary. Med Consumer Watch is not a medical provider. See our Disclosure for more information.
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Compounded
Any prescribed dose up to 2.5 mg/week
Prescription & clinician review included
Shipping included
$948 due today
Compounded
Any prescribed dose up to 15 mg/week
Prescription & clinician review included
Shipping included
$1,548 due today
Treatment requires a prescription and clinician approval. If treatment is declined, your payment is refunded. Compounded medications are not FDA-approved.
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