The former Kellogg's, renamed Kellanova, continues to manufacture the cereal for the rest of the world and the meal bars for all markets.

The goal of this challenge was to help an individual lose six pounds in two weeks; this loss was achieved by eating specific Special K products throughout the day.

The diet began with a single serving of any Special K cereal, accompanied with 2/3 cup of skim milk and a side of fruit.

The diet does not include guidance on how to change unhealthy overeating or lack of exercise and their importance to permanent weight loss.

[6] In the UK in 2014, an advertising campaign focused on a study run in collaboration with the Department of Human Sciences at Loughborough University, requiring overweight volunteer subjects to replace two meals a day with a bowl of the cereal, for a period of two weeks.

There are four varieties of Special K Protein Granola Bars: Chocolatey Peanut Butter, Dark Chocolate, Greek Yogurt & Fruit, and Almond Honey Oat.

Special K2O Protein Water was available in several flavors, including Strawberry Kiwi,[19] Lemon Twist, and Tropical Blend.

[22] On August 15, 2007, Kellogg's re-launched Special K2O Protein Water with enhanced graphics and a new flavor, Mixed Berry.

Danish health officials banned cereals containing added vitamins because they claimed Kellogg's Special K wanted to add extremely high levels of vitamin B6, calcium, folic acid, and iron, which would reach toxic levels when eaten on a daily basis.

[28] In an episode aired on October 15, 2009, the Dutch television show Keuringsdienst van Waarde [nl],[29] followed up one of Kellogg's Special K nutritional claims, namely the addition of iron.

They also challenged the claim that the cereal could contain "shredded bites," and responded that iron powder is suitable for human consumption.

[citation needed] In late February 2013, the company recalled three sizes of the Special K Red Berries in the US which may have contained pieces of glass.