The brand’s history officially reaches back to 1894, when W.K. Kellogg and his brother, Dr John Harvey Kellogg, experimented with cereal foods. W.K. Kellogg eventually developed toasted corn flakes, which became the foundation of the Kellogg’s brand. The company itself was established in February 1906.2

The story of Kellogg’s begins in Battle Creek, Michigan, a city that became closely associated with the American cereal industry. W.K. Kellogg worked with his brother John Harvey Kellogg, who was involved in nutrition and health practices at the Battle Creek Sanitarium. During their experiments with grains, they discovered that cooked grain could be processed into thin flakes.

According to Kellogg’s historical account, an early experiment involved accidentally flaking wheat berries. W.K. Kellogg continued experimenting and eventually succeeded in producing corn flakes. The resulting product became Kellogg’s Corn Flakes, one of the most recognisable breakfast cereals in history.

In 1906, W.K. Kellogg founded the Battle Creek Toasted Corn Flake Company and hired its first 44 employees. This marked the formal beginning of the business that would eventually become the Kellogg Company.3

Will Keith Kellogg (W.K. Kellogg) was the central figure behind the commercial development of Kellogg’s. Rather than treating cereal simply as a food product, Kellogg helped turn it into a modern consumer brand by emphasising quality, nutrition, packaging, advertising, and consistency.

His philosophy was strongly connected with nutrition and wellness. The company later became known for introducing nutritional information and educational initiatives alongside its products. Kellogg also established the W.K. Kellogg Foundation in the 1930s, an independent philanthropic organisation focused on helping children and communities.4

W.K. Kellogg’s legacy extends beyond Corn Flakes; he helped establish breakfast cereal as a major category of packaged food.

Kellogg’s Corn Flakes is arguably the defining product of the brand. The cereal consists of thin, toasted flakes made primarily from corn. Its golden appearance and simple packaging helped establish the visual identity that consumers came to associate with Kellogg’s.

Kellogg describes Corn Flakes as its original cereal and states that the product has been part of consumers’ breakfasts for more than a century.5 Corn Flakes was important not simply because it was commercially successful, but because it helped popularise the idea of boxed, ready-to-eat cereal as a convenient breakfast food. That basic concept became the foundation of a massive food industry.

Following the success of Corn Flakes, Kellogg’s expanded its product range significantly throughout the 20th century.

1915: Bran Flakes

Kellogg introduced Bran Flakes, promoted as a high-fibre cereal. All-Bran followed in 1916.6

1928: Rice Krispies

Kellogg launched Rice Krispies, another product that became one of the company’s signature brands.7

1930s: W.K. Kellogg Foundation

The W.K. Kellogg Foundation was established to support children’s welfare and development.8

1950s: Tony the Tiger

One of Kellogg’s most important marketing characters, Tony the Tiger, was introduced in 1952. He became the mascot of Frosted Flakes and one of the most recognisable cereal mascots in advertising history.9

1970: Frosted Mini-Wheats

Frosted Mini-Wheats was introduced internationally, expanding Kellogg’s presence in the wheat-based cereal category.

Over the decades, Kellogg’s built an enormous portfolio of cereals. Some of its best-known products and brands include:

• Kellogg’s Corn Flakes
• Frosted Flakes
• Froot Loops
• Rice Krispies
• Rice Krispies Treats
• Special K
• Raisin Bran
• All-Bran
• Frosted Mini-Wheats
• Corn Pops
• Crispix
• Apple Jacks
• Honey Smacks
• Krave
• Kashi
• Bear Naked
• Cracklin’ Oat Bran

The current WK Kellogg portfolio lists many of these brands, including Corn Flakes, Frosted Flakes, Froot Loops, Rice Krispies, Special K, Raisin Bran, All-Bran, and Frosted Mini-Wheats.

Not every Kellogg’s-branded product is currently controlled by the same corporate entity due to the company’s 2023 separation and subsequent acquisitions.

One of Kellogg’s greatest marketing innovations was the use of memorable characters to give individual cereals their own personalities.

Tony the Tiger

Tony the Tiger is the mascot of Frosted Flakes and is famous for the advertising slogan “They’re Gr-r-reat!”. Tony was introduced in 1952 and became one of the most recognisable characters in food advertising.10

Toucan Sam

Toucan Sam became associated with Froot Loops.

Snap, Crackle and Pop

These three characters became the famous personalities associated with Rice Krispies.

This strategy allowed Kellogg’s to market different cereals not merely as foods, but as distinct experiences and personalities, particularly appealing to children and families.

Kellogg’s is particularly notable for its strong visual branding. The classic Kellogg’s logo uses a distinctive red script-style wordmark. The packaging of its cereals generally combines bright colours, large product names, illustrated mascots, photographs of the cereal, nutrition information, serving suggestions, and family-oriented imagery.

The cereal box became an important advertising medium in its own right. Kellogg was also an early company to place nutritional and product information prominently on cereal packaging, reflecting its historical emphasis on nutrition education.

Kellogg’s eventually expanded far beyond the United States. Corn Flakes entered Canada in 1914, and the company subsequently expanded its manufacturing and distribution activities into countries including the United Kingdom, Australia, Mexico, Japan, India, and South Africa.11

The brand became particularly successful because breakfast cereals could be adapted to different markets while maintaining recognisable global branding. Today, Kellogg’s products and brands have a presence in numerous countries, although the exact product portfolio differs significantly by market. For example, the cereals sold under the Kellogg’s name in the United States may differ from those sold in the United Kingdom, India, Australia, or the Philippines.

Although cereal remains the heart of Kellogg’s identity, the historical Kellogg Company eventually became a much broader food company. It expanded into categories such as snack foods, cereal bars, frozen foods, crackers, cookies, plant-based foods, and convenience foods.

Some major brands historically associated with Kellogg Company included Pringles, Cheez-It, Pop-Tarts, Eggo, RXBAR, MorningStar Farms, and Nutri-Grain, among others. This expansion ultimately created a company that was much broader than its original cereal business.

One of the most important developments in Kellogg’s modern history occurred in October 2023. The former Kellogg Company separated its operations into two independent companies.

Kellanova

Kellanova became the company focused primarily on global snacking, international cereal and noodles, and North American frozen foods. Its portfolio included brands such as Pringles, Cheez-It, Pop-Tarts, RXBAR, Eggo, and international Kellogg’s cereal products.12

WK Kellogg Co

WK Kellogg Co became focused primarily on North American cereal. It retained major cereal brands including Corn Flakes, Frosted Flakes, Froot Loops, Rice Krispies, Special K, Raisin Bran, Frosted Mini-Wheats, and All-Bran.

The separation was completed on 2 October 2023.13 Consequently, the old concept of “Kellogg Company” and the modern Kellogg’s brand should not be treated as exactly the same thing.

The corporate story became even more complicated after 2023. In February 2026, Ferrero announced that it had completed its acquisition of WK Kellogg Co, making WK Kellogg Co a wholly owned subsidiary of Ferrero.16

Meanwhile, the other successor company, Kellanova, was acquired separately by Mars. Current Kellogg’s websites direct consumers toward either WK Kellogg Co for cereals or Kellanova for various snacks and foods.14

As a result, there is no longer one single corporation equivalent to the old Kellogg Company.

A simplified way of understanding the modern situation is:

• Original Kellogg Company
• ↓
• 2023 separation
• ↙︎ ↘︎
• WK Kellogg Co Kellanova
• ↓ ↓
• Ferrero Mars

Ferrero completed its acquisition of WK Kellogg Co in February 2026.17

The Kellogg’s trademark and individual Kellogg’s products can therefore appear under different corporate arrangements depending on the product and geographic market. Historical agreements between Kellanova and WK Kellogg Co also allocated trademark and licensing rights between the two businesses.15

Nutrition has been part of Kellogg’s identity since its origins. W.K. Kellogg’s early philosophy was strongly influenced by the idea that cereal and grains could contribute to healthier diets. The company later invested in nutrition research, dietary education, and product development.

Over time, however, the brand has also faced broader debates surrounding breakfast cereals, including questions about added sugar, portion sizes, marketing to children, processing, nutritional value, fortification, and dietary fibre. Kellogg’s has responded with products aimed at different consumer needs, including high-fibre cereals, lower-sugar offerings, and products positioned around nutrition and wellness.

Kellogg’s has had an influence far beyond the cereal aisle. The brand helped establish several concepts that became standard in modern consumer marketing:

1. The cereal box as advertising: The packaging itself became a communication platform.
2. Mascot-based branding: Characters such as Tony the Tiger and Toucan Sam gave products recognisable personalities.
3. Children’s marketing: Cereal brands became strongly connected with children’s television, characters, and family breakfast culture.
4. Breakfast as a branded occasion: Kellogg’s helped transform breakfast from a simple meal into a packaged-food category dominated by recognisable brands.
5. Globalisation of American breakfast culture: Through international expansion, Kellogg’s helped make ready-to-eat cereal familiar in markets around the world.

At its core, Kellogg’s has traditionally positioned itself around several themes:

Breakfast

Breakfast is the central cultural territory of the brand.

Family

Kellogg’s advertising has historically presented cereal as a food shared by families.

Nutrition

The company has long emphasised grains, vitamins, minerals, and fibre.

Convenience

Ready-to-eat cereal offers a quick alternative to preparing a traditional cooked breakfast.

Fun

Products such as Froot Loops and Frosted Flakes use colourful packaging and mascots to create a playful identity.

Nostalgia

For many consumers, Kellogg’s products are associated with childhood, family breakfasts, and familiar advertising characters.

Kellogg’s is important in food history because it helped transform cereal from a relatively specialised health-food concept into a mass-market consumer product. Its influence can be seen in the way modern cereals are manufactured, packaged, advertised, branded, fortified, distributed, and marketed to different age groups.

The company also helped establish Battle Creek as one of the historic centres of the American cereal industry.

The historical timeline is based primarily on Kellogg/WK Kellogg’s own corporate history.

“Kellogg’s” comes from the surname of W.K. Kellogg, the entrepreneur who established the cereal business in 1906. The apostrophe-s construction became an important part of the brand identity, essentially associating the products with the Kellogg family name. Over more than a century, the name evolved from a small cereal manufacturer in Michigan into a globally recognisable consumer-food brand.

In 2026, Kellogg’s remains one of the most recognisable names in the history of breakfast cereal. Its most famous legacy products—particularly Corn Flakes, Frosted Flakes, Froot Loops, Rice Krispies, Special K, and Raisin Bran—continue to represent the brand’s century-long connection with breakfast.

At the same time, the corporate structure behind the name has changed dramatically. The company that was once simply known as Kellogg Company no longer exists in its former structure. Its businesses were separated in 2023, with WK Kellogg Co becoming the North American cereal company and Kellanova becoming the global snacking and international-food company. WK Kellogg Co was subsequently acquired by Ferrero in 2026, while Kellanova was separately acquired by Mars.16

In historical terms, Kellogg’s is both a brand and a legacy of one of the world’s pioneering cereal companies. In corporate terms, however, the Kellogg’s name now represents a collection of products whose ownership and licensing arrangements depend on the market and product category.

1. Our History | Kellogg’s
2. Unleashing Potential
3. Home | Kellogg’s
4. Our History | Kellogg’s
5. Our Passion for Nutrition | Kellogg’s
6. Kellogg’s Corn Flakes® – WK Kellogg Co®
7. How It All Started-About Kellogg’s MENAT and SA | Kellogg’s MENAT
8. Kellogg’s Heritage | Kellogg’s
9. Our History | Kellogg’s South Africa
10. The original plant-based food company | Kellogg’s
11. klg-20241228
12. sec.gov
13. Home – WK Kellogg Co®
14. Our Foods – WK Kellogg Co®
15. Kellanova US | Kellogg’s Brand Page
16. FERRERO COMPLETES ACQUISITION OF WK KELLOGG …
17. EX-99.1