Nutrients people taking GLP-1 medications (such as semaglutide or tirzepatide) most often ask about — reduced appetite can lower protein and micronutrient intake, so protein, magnesium, electrolytes, fibre and key vitamins come up frequently. This is a cost-per-dose value comparison, NOT medical advice: talk to your prescriber, and never change or stop a medication because of a supplement. Best value right now: Potassium from $0.02/serving.
Prices checked Oct 10, 2026
The nutrients people commonly associate with glp-1 companion, each shown at its cheapest current cost per dose (per gram for powders). Ranked lowest cost first; no paid placement.
| # | Nutrient | Cheapest pick | Dose basis | Price | Cost / dose | Refs |
|---|---|---|---|---|---|---|
| 1 | Potassium | Carlyle Potassium Plus Iodine | 99mg… | per serving | $7.99 | $0.02/serving | facts · NIH |
| 2 | Vitamin D3 | Micro Ingredients Vitamin D3 5,000 IU | per serving | $9.99 | $0.02/serving | facts · NIH |
| 3 | Vitamin B12 (Cobalamin) | NOW Supplements, Folic Acid 800 mcg + B-12… | per serving | $6.11 | $0.02/serving | facts · NIH |
| 4 | Psyllium Husk | Nature's Wonder Psyllium Husk 500 mg Capsules… | per serving | $4.99 | $0.02/serving | facts · NIH |
| 5 | Magnesium | Magnesium Oxide 400mg, 500 Capsules | Elemental… | per serving | $15.19 | $0.03/serving | facts · NIH |
| 6 | Probiotics 50B | NatureBell Digestive Enzymes - 240 Capsules… | per serving | $17.99 | $0.07/serving | facts · NIH |
| 7 | Creatine | HEARTHY FOODS Creatine Monohydrate Micronized… | per serving | $10.99 | $0.11/serving | facts · NIH |
| 8 | Protein Powder | NOW Foods Sports Nutrition | per serving | $23.53 | $0.64/serving | facts · NIH |
Ranked by real cost per dose (per gram for powders), not sticker price. We make no health claims — see each linked nutrient page for NIH-sourced facts, or read our methodology.
This page gathers the nutrients people commonly associate with glp-1 companion and ranks each one by cost per dose — the product’s current price divided by its servings per container, then normalized to one daily dose (or per gram for powders so a 20 g and a 25 g serving compare fairly). The table shows the single cheapest pick we currently track for each nutrient, sorted lowest cost first. Nothing here is paid placement, and a nutrient with no active deals simply drops off the list.
If you are assembling a stack for glp-1 companion, cost per dose is the figure that tells you what each option actually costs to take day after day — a smaller bottle with a lower sticker price can cost more per serving than a larger one. Use it to compare like-for-like and avoid overpaying; it is a price-comparison signal, not a measure of quality or suitability.
Detailed nutrient facts — intake ranges, food sources, upper limits and safety — live on each linked nutrient hub, sourced from the NIH Office of Dietary Supplements. For the full ranking rules see our methodology and editorial standards.
Commonly: Protein Powder, Creatine, Magnesium, Potassium, Psyllium Husk, Probiotics 50B, Vitamin B12 (Cobalamin), Vitamin D3. We make no medical claims — each is ranked here by real cost per dose, with NIH-sourced facts on its nutrient page. Not medical advice.
By cost per dose, Carlyle Potassium Plus Iodine | 99mg | 500 Tablets (Potassium) at $0.02/serving is the cheapest per-dose option among the glp-1 companion nutrients we track as of October 2026.
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.