Bumper sales of low-calorie drinks prove that reformulation of standard products is unnecessary, according to the British Soft Drinks Association.
Low-calorie drinks now hold a record market share of 61%, up from 59% last year, according to the BSDA Soft Drinks Report 2007.
It said this demonstrated consumers were already opting for healthier drinks by choice and forcing recipe change on suppliers would be pointless.
"The industry is responding to consumer demand, offering a wide range of drinks both with and without calories, and the consumer is making decisions based on their health and lifestyle needs," said a spokeswoman.
"The consumer is informed enough to be allowed a choice."
The Food Standards Agency proposed reformulating soft drinks so they contained less sugar in its draft strategy on reducing saturated fat and energy consumption, which is currently out to consultation.