Supplement Cost Per Serving Comparison 2026: 736 Products Ranked by Value
Evidence ExplainerWe Compared the Cost Per Serving of 736 Supplements — Here’s What We Found
Supplement prices are everywhere. A bag of creatine monohydrate can cost $0.04 per serving. A premium probiotic can run $11 per serving. Both are sold as “supplements.” Neither price tag tells you much on its own.
To make sense of the market, we analyzed pricing data from our full catalog of reviewed products — 736 supplements across 21 categories. We pulled cost-per-serving figures from Amazon listings referenced in our comparison tables, then organized them by category to identify where the real outliers are, which categories offer the best value, and where premium pricing is most likely to be driven by branding rather than ingredient quality.
This is not a claim that cheaper supplements are better. It is a map of the market.
For zero-click searchers comparing supplement value, the practical answer is this: creatine, vitamin D, and many amino-acid powders usually sit near the low end per serving, while probiotics, sleep blends, premium protein, and some beauty formulas have the biggest price spread. Use the table below to spot categories where paying more should require stronger evidence, third-party testing, or a form that solves a real adherence problem. For examples of ingredient-specific buying decisions, compare our best L-citrulline supplement and best exogenous ketones supplement guides.
How We Built This Dataset
The data in this article comes from our supplement catalog: 736 products reviewed across bodysciencereview.com, with cost-per-serving figures sourced from Amazon listing prices at the time of each article’s publication (early 2026). All prices are retail, not sale prices. Cost per serving is calculated as (price ÷ servings per container).
What this dataset covers:
- 736 supplement products
- 21 supplement categories
- Amazon pricing as of early 2026
- Only products with determinable per-serving costs included
What this dataset does not cover:
- Subscription pricing, auto-ship discounts, or retailer-specific promotions
- Ingredient quality, bioavailability, or third-party testing status
- Products sold exclusively through brand websites without Amazon listings
Prices fluctuate. This data is a snapshot. For current prices, check the product links — each connects directly to the live Amazon listing.
The Full Picture: All 21 Categories Ranked by Cost
Here is the complete category ranking, from most expensive to least expensive average cost per serving:
| Category | Products Analyzed | Avg $/Serving | Median $/Serving | Lowest | Highest |
|---|---|---|---|---|---|
| Gut Health | 25 | $1.59 | $0.68 | $0.10 | $11.37 |
| Protein | 9 | $1.31 | $1.30 | $0.47 | $2.00 |
| Weight Management | 10 | $1.12 | $1.46 | $0.11 | $1.97 |
| Immune Support | 10 | $0.81 | $0.46 | $0.13 | $2.17 |
| Collagen & Joints | 23 | $0.81 | $0.67 | $0.10 | $2.50 |
| Sleep | 39 | $0.79 | $0.24 | $0.07 | $12.00 |
| Multivitamins | 10 | $0.72 | $0.58 | $0.13 | $1.50 |
| Energy & Mitochondria | 22 | $0.64 | $0.58 | $0.12 | $1.83 |
| Nootropics | 64 | $0.61 | $0.42 | $0.16 | $3.00 |
| Overall Average | 736 | $0.62 | — | $0.02 | $14.00 |
| Minerals | 9 | $0.51 | $0.30 | $0.08 | $1.41 |
| Hair, Skin & Beauty | 24 | $0.49 | $0.28 | $0.04 | $2.63 |
| Magnesium | 18 | $0.49 | $0.40 | $0.08 | $1.25 |
| Electrolytes | 9 | $0.48 | $0.23 | $0.03 | $2.20 |
| Adaptogens | 38 | $0.44 | $0.33 | $0.04 | $1.50 |
| Metabolic Health | 11 | $0.44 | $0.40 | $0.15 | $0.83 |
| Omega-3 / Fish Oil | 11 | $0.43 | $0.39 | $0.21 | $0.67 |
| Amino Acids & BCAAs | 8 | $0.39 | $0.31 | $0.10 | $1.25 |
| Vitamin D & K | 14 | $0.30 | $0.25 | $0.03 | $0.73 |
| Hormones & Testosterone | 18 | $0.26 | $0.18 | $0.02 | $0.83 |
| Creatine | 11 | $0.22 | $0.17 | $0.04 | $0.50 |
Key takeaway: The median cost per serving for most categories sits in the $0.25–$0.65 range. The averages get pulled high by premium outliers. Knowing the median is more useful for budget planning than the average.
The Cheapest Categories
Creatine — Avg $0.22/Serving
Creatine monohydrate is the most affordable supplement category and one of the most-researched performance compounds in sports science. Generic creatine starts at $0.04/serving for large bulk bags.
The wide availability of Creapure-certified creatine monohydrate at budget price points makes brand-premium creatine ($0.40–$0.50/serving) a difficult value proposition to justify. The active ingredient is the same.
Best value pick: Creatine Monohydrate (Creapure) — $0.04/serving
Hormones & Testosterone — Avg $0.26/Serving
Despite the “premium supplement” branding common in this category, foundational single-ingredient products are inexpensive. Boron, DHEA, and zinc — three of the most commonly taken supplements for male hormonal health — all land under $0.08/serving.
Best value pick: NOW Foods Boron — $0.024/serving | Life Extension Boron — $0.08/serving
Vitamin D & K — Avg $0.30/Serving
Basic vitamin D3 at therapeutic doses (2,000–5,000 IU) runs $0.03–0.07/serving. Combined D3+K2 formulas cost more — typically $0.25–0.73/serving — but even the premium end is affordable by supplement standards.
Best value pick: Nature Made Vitamin D3 2000 IU — $0.031/serving
Amino Acids & BCAAs — Avg $0.39/Serving
L-glutamine powder in bulk is one of the most cost-efficient amino acid sources at $0.10/serving. BCAA blends run slightly higher ($0.25–$1.25/serving) depending on ratio complexity and flavoring.
Best value pick: Nutricost L-Glutamine Powder — $0.10/serving
Electrolytes — Avg $0.48/Serving
The electrolyte category has a wide split: pure potassium chloride powder starts at $0.028/serving, while premium electrolyte mixes with added ingredients can reach $2.20/serving. The difference is mostly flavoring, branding, and added amino acids — not foundational electrolyte content.
Best value pick: Bulk Supplements Potassium Chloride — $0.028/serving
The Most Expensive Categories
Gut Health — Avg $1.59/Serving
Gut Health is the priciest category — and the most volatile. The median ($0.68/serving) is far below the average ($1.59/serving), meaning expensive outliers pull the number up. Products like Thorne Bio-Gest (digestive enzymes, $0.50/serving) represent the reasonable mid-range. Premium multi-strain probiotics and digestive enzyme stacks push the high end toward $3–$11/serving.
Most expensive in dataset: Culturelle Digestive Daily — $11.37/serving (note: per-capsule cost for a small-count package).
The budget end of Gut Health is real: fiber supplements like Citrucel Methylcellulose run $0.10/serving and represent one of the most cost-efficient options in the category.
Protein — Avg $1.31/Serving
Whey protein is a category where value is clearer: cost-per-gram of protein is the metric that matters, not cost-per-serving. At $0.47–$2.00/serving, the range is wide but narrower than other categories. Plant protein blends and specialty formulas (grass-fed, colostrum-spiked) push the high end.
Mid-range pick: Optimum Nutrition Gold Standard Whey — $0.47/serving (budget size), $1.20/serving (smaller packs)
Weight Management — Avg $1.12/Serving
Fat burner and metabolism support formulas carry high margins. The average is $1.12/serving, but many products in this category contain stimulants, proprietary blends, and marketing claims that inflate pricing. The cheapest effective option in the dataset — green tea extract at $0.11/serving — contains the same core active compound (EGCG) as products selling for $1.97/serving.
Best value pick: NOW Sports Green Tea Extract — $0.11/serving
Categories With the Widest Price Variance
These categories have the largest gap between cheapest and most expensive options — meaning your buying decision has the most cost impact here:
Sleep — $0.07 to $12.00/Serving (171x range)
No category shows more price variation than Sleep. Simple melatonin at $0.07/serving and liquid herbal tinctures at $12.00/serving are both sold as “sleep supplements.” The difference:
- Budget: Life Extension Melatonin 300mcg — $0.07/serving
- Mid-range: Magnesium glycinate + L-theanine stacks — $0.50–$1.50/serving
- Premium: Multi-compound sleep formulas and liquid herbal extracts — $5–$12/serving
For most adults looking to spend less, basic melatonin or magnesium glycinate represent the lowest-cost entry points in the sleep supplement category.
Gut Health — $0.10 to $11.37/Serving (114x range)
See above. The variation is driven by package count (buying 15 capsules vs. 90), probiotic strain complexity, and CFU counts.
Nootropics — $0.16 to $3.00/Serving (19x range)
With 64 products analyzed, nootropics is the largest category in this dataset. The variance reflects a genuine range of ingredient complexity: single-ingredient bacopa at $0.16/serving versus multi-stack formulas with CDP-choline, lion’s mane, bacopa, phosphatidylserine, and adaptogens at $2–$3/serving.
Best value pick: NOW Foods Bacopa Extract — $0.16/serving | Jarrow Formulas Citicoline 250mg — $0.42/serving
Budget-First Shopping Guide
If you are building a supplement stack with a cost constraint, these picks represent the lowest-cost-per-serving options in their category that also have real product reviews and established market presence:
| Check price | Category | Best Budget Pick | $/Serving |
|---|---|---|---|
| Amazon | Creatine | Creatine Monohydrate (Creapure) | $0.04 |
| Amazon | Vitamin D | Nature Made D3 2000 IU | $0.03 |
| Amazon | Boron | NOW Foods Boron | $0.02 |
| Amazon | Sleep | Life Extension Melatonin 300mcg | $0.07 |
| Amazon | Magnesium | Magnesium Malate (NOW Foods) | $0.08 |
| Amazon | Zinc | NOW Zinc Gluconate 50mg | $0.08 |
| Amazon | Electrolytes | Bulk Supplements Potassium Chloride | $0.03 |
| Amazon | Adaptogens | NOW Supplements Maca 500mg | $0.04 |
| Amazon | Fiber / Gut | Citrucel Methylcellulose | $0.10 |
| Amazon | Vitamin C | Doctor’s Best Vitamin C (Quali-C) | $0.13 |
| Amazon | Omega-3 | NOW Neptune Krill Oil | $0.21 |
| Amazon | Nootropics | NOW Foods Bacopa Extract | $0.16 |
| Amazon | Protein | Optimum Nutrition Whey (large bag) | $0.47 |
| Amazon | Collagen | Doctor’s Best Hyaluronic Acid w/ Chondroitin | $0.10 |
What Cost Per Serving Does — and Does Not — Tell You
Cost per serving is one useful signal. It is not the full picture.
What it helps with:
- Spotting price outliers in a category (if a product costs 5x the category average, why?)
- Comparing budget vs. premium options for the same ingredient
- Building supplement stacks within a monthly spend target
What it does not capture:
- Bioavailability: A cheaper form of an ingredient may absorb less efficiently, making the effective dose cost more than it looks. Magnesium glycinate vs. magnesium oxide is a classic example — oxide is cheaper per serving but is poorly absorbed compared to chelated forms.
- Dose: A $0.50/serving product may deliver a clinical dose. A $0.15/serving product of the same ingredient may deliver a sub-clinical amount.
- Third-party testing: Products with NSF, USP, or Informed Sport certification carry additional quality assurance that costs money to maintain. That premium can be worth it depending on your needs.
- Ingredient form: Creatine monohydrate vs. creatine HCl, for example, have different solubility profiles and pricing — monohydrate wins on cost per dose of effective creatine delivered.
Frequently Asked Questions
What supplement has the lowest cost per serving?
Based on our dataset of 736 products, NOW Foods Boron costs just $0.024 per serving — the lowest of any supplement we analyzed. Natrol DHEA 25mg ($0.027/serving) and Bulk Supplements Potassium Chloride ($0.028/serving) are close runners-up. Single-ingredient, well-established supplements sold in large quantities consistently land at the bottom of the cost-per-serving range.
Which supplement category is the most expensive per serving?
Gut Health supplements average $1.59 per serving across 25 products — making it the priciest category in our dataset. The high average is partly skewed by premium probiotics and digestive enzyme complexes priced above $3/serving. Protein powder ($1.31/serving avg) and Weight Management supplements ($1.12/serving avg) are the next most expensive categories.
Is creatine really the cheapest supplement?
Yes. Creatine monohydrate is the cheapest supplement category by average cost: $0.22/serving across 11 products, with budget options starting at $0.04/serving. Given that creatine monohydrate is also among the most rigorously studied performance supplements — with hundreds of human clinical trials — it represents exceptional value for the evidence behind it.
Why do some sleep supplements cost $12 per serving?
The Sleep category has the widest price variance of any category: $0.07 to $12.00 per serving. High-end sleep formulas combine multiple premium compounds (L-theanine, glycine, magnesium threonate, reishi, phosphatidylserine) in clinical doses, which drives cost. Liquid herbal extracts (like passionflower tincture) also skew the high end because the serving size delivers a concentrated liquid dose. In contrast, basic melatonin starts at $0.07/serving.
How does brand affect supplement cost per serving?
Brand can drive a 3–8x price premium in the same category. For example, magnesium glycinate ranges from $0.08/serving (generic brands like NOW Foods Magnesium Malate) to $1.25/serving for premium formulations. In categories like Vitamin D, Creatine, and basic Minerals, generic formulations at $0.03–0.10/serving use the same active ingredient as products priced at $0.50+. For established single-ingredient supplements, the ingredient form and third-party testing certification are better value signals than brand prestige.
The Bottom Line
The average supplement in our dataset costs $0.62 per serving. But averages obscure the real story: within most categories, there is a 5–20x price spread that rarely reflects a proportional quality difference.
Creatine, basic vitamin D3, magnesium, and zinc are all foundational supplements with strong evidence bases — and they are also among the cheapest per serving you can find. At the expensive end, premium probiotic complexes, multi-compound sleep formulas, and collagen-collagen blends carry real cost that may or may not translate to meaningfully better outcomes depending on your specific needs.
The most useful strategy: identify what you actually need (what ingredient, what dose, what certification level matters for your use case), find the lowest-cost product that meets those criteria, and ignore the rest of the premium packaging.
Use our supplement comparison guides to dive deeper into specific categories where we assess ingredient quality, dosing, and third-party certifications alongside price.