The powerful Walt Disney Company has recently made a decision that will have significant influence on a wide range of food manufacturers, including cereal. All food products advertised on their entertainment services must meet strict nutritional standards. For cereal this means no more than 10 grams of sugar per serving (although that's kind of nebulous since companies can easily modify suggested serving sizes).
This policy is likely to prompt other media companies to make similar changes.
(Source: New York Times)