British model Naomi Campbell arrives for an event in 2010 during the 63rd Cannes international film festival. A two-week regime of maple syrup, lemon and pepper that she reportedly followed has come under the spotlight of a U.K. science campaign. (Matt Sayles/Associated Press)

Celebrity-endorsed health tips such as David Beckham wearing silicone bracelets to boost energy and Naomi Campbell's maple syrup diet have been highlighted by a campaign group as abuses against science.

The Sense About Science group debunked diet and exercise suggestions made by actors and pop stars Wednesday "to help the celebrities realize where they are going wrong and to help the public make sense of celebrity claims."

The group asks scientists to respond to celebrity claims to help people make sense of the statements.

Under its health and fitness section, the group said soccer star Beckham and Prince William's fiancée Kate Middleton have been spotted wearing a hologram-embedded silicone bracelet which claims to improve energy and fitness.

In 2010, there was a big rise in "dubious theories about how the body works," such as:

• Singer and actress Olivia Newton-John saying that she takes digestive enzymes and plant tonics to boost her immune system.
• A two-week regime of maple syrup, lemon and pepper that supermodel Naomi Campbell and actors Ashton Kutcher and Demi Moore reportedly used.
• Singer Sarah Harding of Girls Aloud's saying she sprinkles charcoal over her meals because it "apparently absorbs all the bad damaging stuff in the body," without affecting taste.

"Many of these claims promote theories, therapies and campaigns that make no scientific sense," SAS said in a statement.

"We'd like to see more celebrities checking out the science before they open their mouths and send the wrong thing viral," said the group's assistant director, Lindsay Hogg.

The group's new lessons for 2011 are:

• There's no need to boost: bodily functions occur without boosting.
• Energy and fitness come from food and exercise: there are no shortcuts.

Two earlier pieces of advice are worth repeating, the group said:

• Nothing is chemical free: everything is made of chemicals, it's just a case of which ones.
• Detox is a marketing myth: our body does it without pricey potions and detox diets.