Complex sentence: Milo contains some theobromine, a xanthine alkaloid similar to caffine which is present in the cocoa used in the product, thus, like chocolate, it can become mildly addictive of consumed in quantities of more than 15 heaped teaspoons per day.
Split into simpler sentences: Milo contains some theobromine, a xanthine alkaloid similar to caffeine which is present in the cocoa used in the product. Thus, like chocolate, it can become mildly addictive if consumed in quantities of more than 15 heaped teaspoons per day.