Supplement Brands Make Health Claims. Their Websites Don't Back Them Up.

eCommerce & Retail · 209 sites audited · March 22, 2026

56

AISO Score

39

AEO

87

SEO

60

Readability

47

Engagement

The State of Supplements / Health Products Websites

Someone asks Google AI: "What's the best magnesium supplement for sleep?" Your product has thousands of five-star reviews. But your website lacks the structured data AI needs to recommend you. Across 209 supplement and health product sites, the average AISO score is 56/100. SEO averages 87. AEO lands at 39.

Readability scores 60, and engagement sits at 47. A total of 24% of sites fall below 50. Supplement sites often prioritize flashy design over clear, trustworthy content.

Schema markup is absent from 33% of supplement sites. Without it, AI engines cannot verify product claims, ingredients, or certifications. Trust is everything in supplements. Your website structure should reflect that.

Why This Matters for Supplements / Health Products

Health product ecommerce is defined as the online sale of dietary supplements, vitamins, and wellness products. This industry faces extra scrutiny from both regulators and search algorithms due to health claims.

Google classifies supplement content as YMYL (Your Money or Your Life). This means your site faces higher quality standards. Pages without clear sourcing, proper structure, and accessible design get ranked lower. AI engines are even stricter. They only cite sources they can verify.

E-E-A-T refers to Experience, Expertise, Authoritativeness, and Trustworthiness. For supplement brands, this means showing credentials, linking to research, and writing content that a medical professional would find accurate.

Supplement brands that fail to structure their websites for trust lose ground to competitors who do.

Key Findings

24%

Score Below 50

33%

No Schema Markup

19%

No Open Graph Tags

39/100

Avg AI Engine Score

Key Takeaways

Common Mistakes in Supplements / Health Products Websites

  1. Health claims without sourcing — Stating benefits without linking to studies or citing research triggers quality filters.
  2. No ingredient schema — AI engines cannot parse supplement facts from an image. Use structured data for ingredients.
  3. Dense scientific text — Long paragraphs of medical terminology drive away both readers and search algorithms.
  4. Missing certifications on product pages — GMP, NSF, or third-party testing badges should be visible and machine-readable.
  5. No FAQ about safety or dosage — Shoppers search these questions constantly. Your site should answer them.

How to Improve Your Supplements / Health Products Website

  1. Add Product schema with supplement-specific fields. Include ingredients, dosage, certifications, and manufacturer details.
  2. Write a plain-language ingredient explainer. For each active ingredient, state what it does, the dose, and any relevant research.
  3. Build FAQ sections for every product. Cover dosage, side effects, interactions, and who should not take the product.
  4. Display certifications prominently. Show GMP, NSF, or third-party test results on each product page with alt text.
  5. Cite sources for all health claims. Link to published studies or official health guidelines. AI engines verify claims before citing them.

Dimension Breakdown

AI Engine (AEO) (30%)
39
SEO (20%)
87
Readability (25%)
60
Engagement (25%)
47

Score Distribution

AISO Score Ranges

0-9
0
10-19
0
20-29
0
30-39
11
40-49
40
50-59
77
60-69
67
70-79
14
80-89
0
90-99
0

Grade Distribution

A
0 (0%)
B
14 (7%)
C
67 (32%)
D
77 (37%)
F
51 (24%)

Frequently Asked Questions

What is an AISO score?

An AISO score is defined as a 0-to-100 rating that measures how well a website performs across SEO, readability, engagement, AEO, and accessibility. It reflects visibility to both traditional search and AI engines.

What is AEO?

AEO refers to Answer Engine Optimization. It means formatting your website content so AI tools like ChatGPT and Google AI Overview can read and recommend your products.

Why are supplement websites held to higher standards?

Google classifies health and supplement content as YMYL (Your Money or Your Life). These pages face stricter quality checks because inaccurate information could harm someone's health.

What schema should supplement brands use?

Use Product schema with ingredient lists, dosage information, brand, price, availability, and any certifications. Add FAQPage schema for product Q&A sections.

How do AI engines evaluate supplement brands?

AI engines look for trust signals: cited research, clear ingredient data, certifications, and direct answers to health questions. Marketing claims without evidence get skipped.

What is E-E-A-T and why does it matter for supplements?

E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness. Google uses these factors to rank health content. Supplement sites need expert-reviewed content and visible credentials.

How can I improve my supplement site's readability?

Define scientific terms in plain language. Use short sentences. Break ingredient lists into scannable sections. Write at an 8th grade reading level.

What accessibility issues affect supplement sites?

Common problems include supplement facts displayed only as images without alt text, small font sizes on dosage instructions, and poor color contrast on product labels.

All 209 Audited Sites

Domains are partially blurred. Scores range from 0 to 100.

#DomainAISOGradeAEOSEORead.Eng.
1pur****.com76B75898557
2robin*********.com75B63968464
3simpleeno***************.com73B501009456
4sunl*****.com73B631008253
5leanki**********.com73B68997557
6swanso*********.com72B56988855
7alaskap************.com71B58877865
8loca*****.vitaminshoppe.com71B56879059
9impactn***********.com71B40929567
10solutio************.com71B63938053
11vita*******.com71B691006459
12apex*****.com70B46978663
13sprin********.com70B55997954
14nutra********.com70B48988459
15actnat**********.com69C58788559
16natur*********.com69C511008056
17thenut***********.com69C54789157
18planet*********.com68C38928764
19derm*******.com68C53907661
20nutri*********.com68C66985459
21heritage*************.com68C58957751
22dcnu*******.com68C48958157
23monarchwell******************.com67C48947659
24riord********.org67C48978051
25wvto*****.com67C38979353
26allab********.com66C55978438
27natur********.com66C35958957
28medici*********.com66C40958752
29willia**********.com66C48948546
30pharmso***********.com65C36958059
31thesyn***********.com65C501008038
32intermou**************.com65C60994068
33proheal*************.com65C46907853
34coastalpha****************.com65C42947162
35yourhea************.com65C40929049
36steuar**********.com65C52977942
37vita*****.com65C66907730
38wayne********.com65C30959750
39maste*******.com65C52727464
40ath*****.co64C47709154
41botanic***********.com64C61876253
42bozema**********.com64C35907961
43vegasdis**************.net64C44949137
44hampton************.com64C38778463
45ccn***.com64C30929454
46clarit***********.com64C61837837
47nutr******.com63C65993957
48vrafor*********.com63C381006265
49wholeheal**************.com63C43839143
50ne***.coop63C40957948
51vch****.com63C30988750
52standa*********.com63C52996247
53nutriti*************.com63C30988056
54sweetgr***********.com63C58984953
55vitali*********.com63C60867140
56catal********.com62C48996448
57campbel***********.com62C40957746
58belca********.com62C48955064
59ofallo**********.com62C42997642
60natura***********.com62C48998330
61cornerst**************.com62C48777951
62voxnu*******.com62C501006740
63nutri*******.com62C47728252
64aznut********.com61C40808447
65jinh*******.com61C40837259
66hsm*****.com61C251007857
67arn*****.com61C62933859
68ac***.com61C30957159
69bal****.com61C53915057
70c**.com61C42856759
71amer*****.com61C35828154
72total*********.com61C38956657
73pur****.com60C521004947
74tnkh*****.net60C25958847
75noname*********.com60C40908435
76vital********.com60C53946042
77ncnut********.com60C40877747
78dak*****.com60C35807756
79rx***.com60C43857050
80medi******.com60C381006945
81citydr**********.com60C47847145
82avantem************.com59D40946945
83fameh*********.com59D601001667
84bus*****.oxfordms.com59D40837447
85nut*****.com59D38888040
86healthspa***************.com59D30956659
87wyoming***********.org59D48778335
88thevita***********.com59D40906156
89bal***.com59D28848353
90emera*******.com58D58854352
91goodnut*************.com58D35897247
92mik****.net58D25898742
93puren********.co58D38986046
94orthomol**************.com58D40944862
95vest******.com58D58982658
96vitam*********.com58D25728857
97smit*****.com58D47738335
98biova********.com58D48705067
99firstprior****************.com58D30957940
100sto***.gnc.com57D20976959
101matsun*********.com57D301004664
102summitw************.com57D401003564
103eagle*******.com57D33905957
104perform***********.com57D40756555
105kyn****.com57D35609048
106conq*****.com57D28778745
107madei*******.org57D38827147
108yello********.com57D30996151
109southcount******************.com57D46974452
110healthn***********.com57D30848935
111pharmaceu****************.com56D70803737
112gmp****.com56D371004853
113valle********.com56D37837045
114health**********.com56D35938425
115winu*******.com56D48944942
116scco******.com56D43894951
117studio***********.com56D48923162
118nov*****.com55D30956047
119bgnutr***********.com55D30778240
120theapo*********.com55D40885151
121granite*************.com55D38677842
122smp*****.com55D28947240
123city*****.com55D48953847
124askhe********.com55D20858345
125canyo*********.com54D30936440
126solution**************.com54D60854432
127i**.usana.com54D37855448
128nutr*****.com54D43845840
129hal***.com54D30755959
130soli*****.com53D40707037
131bus*****.nkychamber.com53D25788040
132montana************.com53D48805437
133wellnessp**************.com53D35954747
134sele*******.com53D43745052
135nutr*****.biz53D25955352
136clarks**********.com53D35806936
137blue*******.com52D30974350
138sunsou*********.com52D25797738
139nutra*********.com52D43893748
140mountainh**************.com52D35709415
141alaskas***********.com51D20995844
142ph***.com51D30993057
143simp*******.net51D56903036
144pharma**********.com51D35657830
145cyan*****.com51D38675845
146natur*********.com51D40993442
147relian*********.com51D40844147
148carolinain*****************.com51D35905437
149jwnut********.com51D20934757
150wbb*****.com51D48942942
151greenemou**************.com51D18838332
152phar******.com50D52852347
153akfami**********.com50D20877530
154ally*****.com50D234910035
155vita*****.com50D201003859
156bimini*********.com50D35824447
157abasteck*************.com50D25846537
158ganne********.com50D40866518
159florid***********.com49F30805837
160altahea***********.com49F20618042
161asimply*************.com49F40756028
162explod*********.com49F53851056
163powel*********.com49F35735242
164mypay*********.com48F35893542
165inw***.com48F48881054
166makers*********.com48F201003552
167grapevineh*****************.com48F35952747
168scfut*********.com48F28736830
169earths***********.com48F301003243
170newgen***********.com48F35853251
171willings*************.com47F301003240
172blb*****.com47F30991064
173nutri*********.com47F35605937
174ci***.com47F401002040
175thevitami***************.com47F35686030
176garners***********.com47F40527226
177form*****.com47F38726025
178davi*******.com47F25993742
179dominan*************.com47F25803854
180pioneer************.com46F33773747
181nutrition***************.com46F28587926
182kenn*******.com46F40723742
183nutrisp************.com46F40981046
184clarkprof****************.com46F37901058
185synbio*********.com46F25457640
186eve****.com46F30973138
187wal****.com46F25458630
188pres******.com45F20903052
189w**.siouxfallschamber.com45F25813847
190midwest*************.com44F25814340
191smk-******.com44F42701157
192fl***.org43F25755032
193command************.com43F30843137
194plazal**********.com43F48951030
195novita*********.com42F46701047
196med*****.com41F35751545
197mar***.com40F15784137
198respect*************.com40F30951037
199niem*******.com39F30851042
200bus*****.chandlerchamber.com39F25702051
201essenti***********.com39F20951047
202paramount****************.com39F20921049
203ahfv*******.com39F20931047
204terryna************.com38F25831046
205onl***.freshmartpr.com38F20258821
206noraa*********.com33F18731040
207w**.srichamber.com32F15721042
208nas*****.com31F30205218
209natures*************.com30F20721027

Methodology

Each website was scored using AISO Studio's production scoring engine across four dimensions:

209 sites collected across US states using geographic search queries. Scores reflect the state of each website at time of audit.

How Does YOUR Supplements / Health Products Website Score?

The average supplements / health products website scores 56/100. Get a free audit to see where you stand and how to improve your AI search readiness.

Get Your Free Audit
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Supplement Brands Make Health Claims. Their Websites Don't Back Them Up. | AISO Studio