Nutritionist Dr Emma Beckett sifts through some of the reasons why people are attracted to extreme diets like meat-only and keto, and what the risks are.

Carb cutting has become a global trend, endorsed by celebrities such as Kim Kardashian, and credited with quick weight loss and blood sugar management. But a new Victorian study raises concerns about type 2 diabetes.

A clinical trial conducted by researchers at Stanford found a ketogenic diet may help people with schizophrenia or bipolar disorder.

A low-carb, high-fat "keto-like" diet may be linked to higher levels of "bad" cholesterol and double the risk of cardiovascular events such as blocked arteries, heart attacks and strokes, according to new research.

Most health experts say the trendy keto diet, which bans carbohydrates to make your body burn fat for fuel, cuts out healthy food such as fruit, beans and legumes, and whole grains. In the keto diet, you limit your intake of carbohydrates to only 20 to 50 a day – the lower, the better. To put that into perspective, a medium banana or apple is around 27 carbohydrates – the full day’s allowance.

Keto is short for ketosis, a metabolic state that occurs when your liver begins to use stored fat to produce ketones for energy. The liver is programmed to do that when your body loses access to its preferred fuel – carbohydrates – and thinks it’s starving.

People with diabetes or prediabetes followed a healthy keto diet and then a traditional Mediterranean diet for three months. How did each diet affect their health? The answer might surprise you.

Studies have found that keto diets can suppress the appetite to help you burn more calories — but the long-term results don't seem much different than other diets.

Race walkers on a low-carbohydrate, high-fat ketogenic diet showed early signs indicative of bone loss.

The athletes on the keto diet displayed an increase in the markers of bone breakdown and a reduction in the markers of bone formation.

In the short-term, a keto diet may offer health benefits. But after about a week, it can lead to negative health effects, a new study with mice shows.