American Health
Last verified: April 2026
Read our full verification: Is American Health Made in USA?Verification Summary
American Score
Manufacturing Location
Ronkonkoma, New York
Headquarters
Ronkonkoma, NY
Founded
1987
Products Verified
9 products
Evidence Breakdown
Factory Location Specificity
Specific factory city identified
Website Claim
Brand website explicitly claims Made in USA
Manufacturing History
20+ years of USA manufacturing
Known Overseas Production
No known overseas production
Verification Notes
American Health is based in Ronkonkoma, New York. Has been producing vitamins, supplements, and probiotics in the USA since 1987. GMP-certified manufacturing facility in New York. Known for Ester-C vitamin C and probiotic supplements. Explicit Made in USA manufacturing claims. Distributed nationally.
Last verified: April 2026
Manufacturing Profile
American Health manufactures at a specific factory location in Ronkonkoma, New York. Founded in 1987 (39 years of documented domestic manufacturing). Our 9 verified American Health listings sit in health & personal care.
Verification tier
90% average
High — strong brand-level and product-level evidence
Factory evidence
Specific city
Ronkonkoma, New York
Catalog breadth
9 products
1 category
How we verified American Health
Most recent check: Oct 7, 2026
From the brand's website
“…Health supplements are manufactured in the USA…”
americanhealthus.com · checked Sep 25, 2026
Amazon listings
We read the live Amazon listing for 9 of the 9 American Health products on this page (most recently Oct 7, 2026). None of them states where the product is made, so these products rely on the brand-level evidence above.
Ongoing monitoring
We scan news for factory closures, offshoring and ownership changes. Last scan Sep 21, 2026: no change found.
These checks are run by our software on a schedule: brand websites are re-read about every three weeks, Amazon listings weekly, and news is scanned monthly. Every flag is checked against its original source before anything on this page changes. How the American Score works.
American Health has been manufacturing products in Ronkonkoma, New York since 1987. We carry 9 verified American-made American Health products.
Heritage & History
American Health was founded in 1987 in Ronkonkoma, New York with a commitment to manufacturing nutritional supplements in the United States to quality standards that the founders felt were not being met by imported alternatives. The supplement industry had grown rapidly but quality control varied enormously, and American Health's founders believed that domestic GMP-certified manufacturing was the answer.
The company became known particularly for Ester-C, a patented calcium ascorbate form of vitamin C that is gentler on the stomach than standard ascorbic acid and is metabolized more slowly for longer-lasting blood levels. Ester-C became one of the most recognized vitamin C innovations in the supplement market, and American Health built a substantial product portfolio around it alongside probiotic supplements and multivitamins.
Made in Ronkonkoma, New York
American Health products are manufactured in their GMP-certified facility in Ronkonkoma, New York, on Long Island. The manufacturing process follows Current Good Manufacturing Practices (cGMP) established by the FDA, including testing of raw materials, in-process quality checks, and finished product testing before release. The New York facility allows American Health to maintain direct oversight of formulation and quality.
The product line includes Ester-C supplements in capsule, tablet, and chewable forms; probiotic supplements with multiple Lactobacillus and Bifidobacterium strains; and a range of vitamins and minerals. American Health products are available at natural food stores, vitamin specialty retailers, and online. For consumers who have been burned by supplement brands with quality issues and want the additional assurance of domestic GMP manufacturing, American Health offers a New York-made alternative backed by decades of production experience.
Quick Picks
Frequently Asked Questions
Is American Health made in the USA?
Yes. American Health manufactures 9 verified products in Ronkonkoma, New York. American Health has been manufacturing vitamins, Ester-C supplements, and probiotics in Ronkonkoma, New York since 1987, operating a GMP-certified domestic facility dedicated to supplement quality.
Where is American Health manufactured?
American Health is headquartered in Ronkonkoma, NY. Manufacturing takes place in Ronkonkoma, New York.
What American Health products can I buy?
We carry 9 verified American Health products across Health & Personal Care. Every listing links directly to a trusted online store with verified American manufacturing.
When was American Health founded?
American Health was founded in 1987. American Health has been manufacturing vitamins, Ester-C supplements, and probiotics in Ronkonkoma, New York since 1987, operating a GMP-certified domestic facility dedicated to supplement quality.
Where can I buy American Health products?
Every American Health product listed here links to a trusted online store — a major retailer or the brand's own shop — where you can purchase directly.
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