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BBC - Newsbeat - Dieticians say extra protein can do more harm than good
Dieticians say extra protein can do more harm than good
Page last updated at 15:20 GMT, Monday, 3 September 2012 16:20 UK
By Rick Kelsey
Newsbeat reporter
There is a warning that gym supplements are often doing more harm than good to people using them.
The British Dietetic Association (BDA) says high levels of additional protein can cause side-effects, which can include nausea as well as kidney and liver damage.
It wants clearer warnings about what is in the powders and tablets.
Manufacturers say consumers are well protected with only 11 reported reactions in 11 years.
Jane Griffin is a former British Olympic dietician and speaks for the BDA.
"The more protein in your diet the more you have to get rid of," she said.
"People who have these high protein diets are now running into problems with their kidneys because of the amount of protein they must get rid of."
The body needs protein for muscle growth and many gym-goers use it to try to get bigger quickly.
Gym supplements come under food law, so although they have to be labelled properly what is in them can vary.
They are different to medicines which legally have to ensure contents are more specific.
DMAA warnings
Euromonitor, which researches the market size of products, estimates that the sports supplement industry grew 15% last year.
It thinks one in five people who go to the gym more than twice a week use supplements that can come in the form of powders and bars.
The Department of Health advises adults to avoid consuming more than twice the recommended daily intake of protein (55.5g for men and 45g for women).
Most adults will take this in during their normal daily meals.
There have been warnings before, most recently from the Food Standards Agency, which advises people not to take gym supplements containing DMAA.
The stimulant was being sold in the UK in some pre-workout and 'fat-burning' shakes.
What's in gym supplements?
Dieticians say extra protein can do more harm than good
Page last updated at 15:20 GMT, Monday, 3 September 2012 16:20 UK
By Rick Kelsey
Newsbeat reporter
There is a warning that gym supplements are often doing more harm than good to people using them.
The British Dietetic Association (BDA) says high levels of additional protein can cause side-effects, which can include nausea as well as kidney and liver damage.
It wants clearer warnings about what is in the powders and tablets.
Manufacturers say consumers are well protected with only 11 reported reactions in 11 years.
Jane Griffin is a former British Olympic dietician and speaks for the BDA.
"The more protein in your diet the more you have to get rid of," she said.
"People who have these high protein diets are now running into problems with their kidneys because of the amount of protein they must get rid of."
The body needs protein for muscle growth and many gym-goers use it to try to get bigger quickly.
Gym supplements come under food law, so although they have to be labelled properly what is in them can vary.
They are different to medicines which legally have to ensure contents are more specific.
DMAA warnings
Euromonitor, which researches the market size of products, estimates that the sports supplement industry grew 15% last year.
It thinks one in five people who go to the gym more than twice a week use supplements that can come in the form of powders and bars.
The Department of Health advises adults to avoid consuming more than twice the recommended daily intake of protein (55.5g for men and 45g for women).
Most adults will take this in during their normal daily meals.
There have been warnings before, most recently from the Food Standards Agency, which advises people not to take gym supplements containing DMAA.
The stimulant was being sold in the UK in some pre-workout and 'fat-burning' shakes.
What's in gym supplements?