Who owns Optimum Nutrition?
Optimum Nutrition is owned by Glanbia (Ireland, ISE: GL9), which has owned the brand since 2008.[1]
This ownership is reported in official statements but has not yet been matched to a regulatory filing.
Key facts
- Current owner
- Glanbia plc reported
- Owned since
- Previous owner
- None recorded
- Owner HQ
- 🇮🇪 Ireland, Kilkenny
- Origin
- 🇺🇸 United States
- Category
- Food › Nutrition & supplements › Protein & sports nutrition
- Parent ticker
- ISE: GL9
- Last verified
- · 1 sources
About Optimum Nutrition
Optimum Nutrition is a US sports supplement brand that Glanbia calls the world's number one sports nutrition brand. Glanbia acquired it in 2008, when the business was one of its own customers, a move Glanbia describes as vertical integration from ingredients into brands. In 2025 it posted double-digit volume growth and ran a campaign across more than 100 markets.
Ownership timeline of Optimum Nutrition
Where Optimum Nutrition sits in Glanbia
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
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Other brands owned by Glanbia in food
Latest news about Optimum Nutrition
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Frequently asked questions
Who is the parent company of Optimum Nutrition?
The parent company of Optimum Nutrition is Glanbia, a publicly listed company headquartered in Ireland.
Is Optimum Nutrition American or Irish?
Optimum Nutrition originated in the United States, but it is owned today by Glanbia, which is headquartered in Ireland. So Optimum Nutrition is an American-origin brand under Irish ownership.
Since when has Glanbia owned Optimum Nutrition?
Glanbia has owned Optimum Nutrition since 2008.
Is Optimum Nutrition still owned by Glanbia?
Yes. As of 16 September 2026, Optimum Nutrition is still owned by Glanbia. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Glanbia — Full Year 2025 Results — Glanbia plc, Annual report; retrieved 16 September 2026.
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