6. Rosemary Stanton

One of Australia's best known nutritionists, Rosemary Stanton is a prolific author of more than 30 books covering public health nutrition, obesity, women's health issues and nutrition for children.

Stanton has long campaigned against fast and fatty foods and this year pushed for the introduction of a fast food tax. Her groundbreaking book, Good Fats, Bad Fats, looks at all types of fats - saturated, poly and monounsaturated, cholesterol, evening primrose oil, omega 3s, omega 6s - and explains what they are, what they do, which ones are safe and which need caution.

Stanton explains how these different types of fat contribute to excess weight, high blood pressure, heart disease, diabetes and various types of cancer.

Stanton's top tips

  • Avoid all processed foods, including margarine. Avoid all trans fats.
  • Consume plenty of good olive oil.

7. Dr Robert Atkins

Robert Atkins death in 2003 did not stop the momentum of the Atkins diet, a controversial dieting method that involves eating low-protein foods, in addition to dietary supplements.

The Atkins diet continues to be followed by millions worldwide, including numerous celebrities. The diet has spawned several other low-carb diets as well as the many low-carb products that now adorn our supermarket shelves.

However, the Atkins diet continues to have many detractors, who believe a diet so high in fat to be dangerous and may increase the risk of heart disease and stroke.

Atkin's top tips

  • Limit intake of carbohydrates.
  • Increase consumption of protein.
  • Increase consumption of leafy green vegetables.

8. Earl Mindell

One of America's top nutritionists, Earl Mindell has long espoused the virtues of taking regular nutritional supplements.

In his acclaimed book The Vitamin Bible, Mindell shows how we can find out which vitamin supplements we need, how vitamins can improve our sex lives and combat a craving for alcohol, lower cholesterol levels and reduce risk of heart disease.

Mindell's top tips

  • Adopt a low-carb diet for weight loss and general health.
  • Consume plenty of soy products, including tofu and tempeh, as a cancer preventative.
  • Take plenty of nutritional supplements to combat deficiencies inherent in our diet and to enhance our mental and physical performance.