Why Protein Supplements Could Be Bad For Your Gut Health

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In brief, the fitness industry is lying to you.

Health experts say that protein supplementation could have a serious impact on digestive health.

tropeaka protein powder

Australians spent over $1 billion on sports nutrition in 2017 and this figure is forecasted to grow to $2.4 billion by 2022/23, says international market research company IBISWorld

Some health professionals warn these products are unnecessary and can damage one’s health.

For most people, simply eating around 20-25g protein each meal is more than enough protein. In fact, a systematic review by Robert Morton, published in the British Journal of Sports Medicine found that anything beyond this won’t offer benefit for muscle growth.

Dr Eric Wegman is a Clinical Gastroenterologist at the The Newland Street Specialist Clinic and is concerned about the relationship between protein supplements and digestive health.

“You are what you eat. And if people eat certain types of food, they’re going to consume certain types of bacteria which will then be found in their gut. And sometimes the bacteria they consume can be harmful,” he says.

“A change in the diet, with an increased selection of protein intake mainly, (especially through shakes) may induce an inflammatory bowel. The classic example . . . People that do a lot of weightlifting and body building, who pack their protein shakes can get colitis – an inflammatory bowel disease.”

With the rising popularity of nutritional supplementation, there is a common perception that ‘the more protein the better’ and that protein powder will lead to quick weight loss and lean muscle.

But this is not necessarily the case.

Rebecca Lancaster, a mental health dietitian with NSW Health, says “where you might start to incur issues is if you are consuming excessive amounts of protein (this is much easier to do when consuming the powder forms rather than litres of milk).”

“For example, high doses of whey protein (a popular protein powder) can potentially cause bloating cramping, increased bowel movements and nausea” she says.

Lancaster says, “protein powders are definitely not a necessity when it comes to meeting your protein requirements. As always, the priority is first and foremost to be consuming a healthy balanced diet consisting of real wholefoods. Protein powders and shakes are not a replacement for good food.”

For the average woman aged 19-50 years this amounts to 2½ servings of protein which may include 2 large eggs for breakfast and 100 g cooked fish fillet for dinner.

Tara Mckenzie

CONTRIBUTOR

Like many of Bondi Beauty's readers, Tara has two main passions; health and beauty. As a group fitness instructor you'll either find her dripping in sweat during a HIIT class or with a full face of bronze makeup. If you meet Tara in person be prepared to act excited as she tells you all about your star sign and why you should start carrying a rose quartz around in your purse.

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