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Mar 1

CSIRO launches new low-carb diet, but that doesn’t mean you have to give up pasta and bread for good – 9Honey

The CSIRO launched a new low-carb diet yesterday that promises improved outcomes for weight loss and diabetes management but just because it's backed by thorough science doesn't necessarily mean you have to ditch carbs for good.

Penned by Professor Grant Brinkworth and dietitian Pennie Taylor, the diet comes off the back of very reputable clinical studies that found following a low-carb diet improved the lives of obese patients with type 2 diabetes.

The premise of the experiment was simple: 115 people overweight people with type 2 diabetes were invited into the lab and then divided into two groups.

The first group was given a "low-carb" diet where they would consume less than 50g of carbohydrates a day, and the second group was given a "high-carb" diet where they would consume 205g a day.

Despite the carb difference, both groups took in the same amount of energy in kilojoules overall.

After 12 months, both groups of people had lost weight, improved their blood pressure levels and lowered their total and LDL (the "bad" cholesterol) cholesterol levels.

It would seem that the results were pretty resounding evidence in favour of ditching starchy carbs forever but the Dietitian's Association of Australia (DAA) says it certainly isnt the only way to lose weight.

"A lower carbohydrate diet is one way of losing weight, but not necessarily the best option," DAA spokesperson Dr Alan Barclay tells Coach.

"To lose weight, people need to consume less kilojoules than their typical daily requirement for example, that's 8700 kJ [about 2000 calories] a day for an average Australian adult. This can be achieved by consuming less fat, protein, carbohydrate or alcohol."

According to Dr Barclay, it isn't necessarily the carbohydrates themselves that are making you fat it's consuming excess energy.

The reason then why low-carb diets tend to represent well in research isn't because they cut out inherently fattening foods, but because they might be easier to fit into some people's lifestyles.

"Some people may prefer to eat a lower carbohydrate diet compared to a lower fat diet the choice is theirs, as one size does not fit all," explains Dr Barclay.

"We do not know what the longer term implications of a low-carbohydrate diet are due to a lack of data, but there is some evidence that they may increase the risk of bowel cancers. "

Another interesting factor that determined the participant's success didn't even have anything to do with what they ate but rather, the support network they access to.

Over the course of the year-long study, both groups were frequently advised by university-trained dietitians up to 15 times each, which the DAA argues is a critical component that can't be ignored.

"Having that tailored, professional advice and a regular touch point for support from an APD helps people to adhere to diet changes," the association writes on their website.

"This has been shown in other studies too. For example, studies comparing different diets, such as the 5:2 diet and a reduced-kilojoule diet, show that weight loss (for instance) slows once dietitian follow-up stops, regardless of the diet followed."

With that in mind, it may seem like the DAA is decidedly against low-carb diets (or in the vested pocket of the laughably-titled "Big Bread"), but that isnt the case they're simply concerned that many people will see the CSIRO's new book as the only way to lose weight.

"The CSIRO research tells us that a low-carbohydrate, high-healthy fat diet may be one option for people with diabetes, but the truth is that there are many ways to have a healthy diet," writes the association.

"For example, research shows that a vegetarian diet, which is very high in carbohydrates, is just as effective as a low carbohydrate diet in improving blood glucose control (HbA1C). Similarly, Mediterranean-style diets, low glycaemic index (GI) diets and high protein diets have all been shown to also work in lowering HbA1C.

"So, there is no one-size-fits-all approach for everyone, as were all different."

Go here to read the rest:
CSIRO launches new low-carb diet, but that doesn't mean you have to give up pasta and bread for good - 9Honey

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