The Healthy Weight Commitment Foundation (HWCF) has pledged with the Partnership for a Healthier America to reduce 1.5 trillion calories by the end of 2015.
Kellogg, Kraft, Nestle, Sara Lee, and Coca-Cola are all members of the HWCF.
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They will look to introduce more low-calorie options, adapt recipes were possible and reduce portion sizes.
The organisation will report annually to the Partnership for a Healthier America and will be evaluated independently by the Robert Wood Johnson Foundation.