The CSIRO Flexi Diet: Food, Menus, FAQs, and Recipes

The CSIRO Flexi diet

Everything you need to know about the CSIRO Flexi diet, including foods to eat, menus, FAQs, shopping lists, and more.

The CSIRO Flexi weight-loss regime bases on CSIRO scientists’ findings that fasting can be an efficient approach to shed weight and maintain good health. The diet dubbed for being more flexible than other diets. On the CSIRO Flexi diet, a typical weekly meal plan involves fasting on alternate days. From Monday to Saturday, a ‘Control’ day is followed by a ‘Classic’ day, with one ‘Flexi’ day thrown in for good measure. Meal replacement drinks play an important role in the diet. Furthermore, a scientific study carried out by Australia’s National Science Agency has revealed that those who stuck to the diet plan lost an average of 5.3% of their total body weight, which is actually a massive three times more than those who weren’t disciplined when following the diet.

What is The CSIRO Flexi Diet Plan?

Although carbs are on the lower side, the CSIRO Flexi recommends that you have six to seven servings a day. This can include high-fiber cereals, whole grain bread, and fruit. Although both diets are heavy in protein, this one differs slightly from the Atkins Diet. You’re more likely to be severely reducing carbs and vital fats on the Atkins Diet. Lean meats, seafood, and low-fat dairy are all part of the diet.

The meal plans help reduce risk factors for chronic conditions, including cardiovascular disease and diabetes. The diet works like this throughout the week: Two shakes, two high-protein snacks, and a typical balanced dinner make up a ‘classic’ day. Two shakes and a low-calorie balanced supper with lots of vegetables are included on ‘control’ days. Flexi days are days when you eat and drink whatever you want.

Foods to Eat on The CSIRO Flexi Diet

The following foods are allowed on this diet

The CSIRO Flexi diet
CSIRO Flexi diet- foods to eat
  • Vegetables: Beetroots, Kale, Spinach, Lettuce, Cabbage, Mushrooms, Onions, Tomatoes, Parsley, Celery, Watercress, Cauliflower
  • Fruits: Mango, Blueberry, Avocado
  • Lean Protein: Chicken, Lean Beef, White Fleshed Fish, Tofu, Salmon, Eggs
  • Legumes: Kidney Beans, Navy Beans, Pinto Beans, Black Beans, Chickpeas, Black Eyed Peas, Lentils, Soy Beans
  • Oil and Fats: Cottage Cheese, olive Oil, Sunflower Oil
  • Nuts and Seeds: Almonds, Walnut, Peanuts
  • Herbs and Spices: Cinnamon, Nutmeg, Mint Leaves, Thyme
  • Mixed Grain Bread

Foods Not to Eat

Avoid these foods on the diet

  • Butter
  • Salad Cream
  • Lard
  • Pasta
  • Pizza
  • White Rice
  • White Bread
  • Cakes
  • Cookies

What to Drink on The CSIRO Flexi Diet

Here is the list of drinks allowed on this diet

The CSIRO Flexi Diet
CSIRO Flexi diet- what to drink
  • Yogurt
  • Low Fat Milk
  • Smoothies
  • Water

What Not to Drink

Avoid these drinks on this diet

  • Soft Drinks
  • Energy Drinks
  • Vitamin Water
  • Fruit Drinks


Thank you for your interest in learning more about our CSIRO Flexi diet plan. Our free embedded checklists are available for download and use at any time. This will come in handy when it comes to meal preparation and grocery shopping.