What is the O2 Diet

An O2 diet is a diet that has lots of antioxidant rich foods. With this diet, you don’t rely on counting calories but you count oxygen radical absorbance capacity (ORAC) points. This number shows the antioxidant activity of the food you take. Antioxidants play a very crucial role in protecting the body from free radicals which can cause disease.

How the O2 Diet Works

When the body utilizes oxygen, it releases by products, among which include free radicals. Free radicals are very reactive molecules which can react with cell membranes and interfere with cell division and growth. Antioxidants react with free radicals thus making them inactive. This reduces the risk of body cells being oxidized by free radicals. As a result, diseases triggered by free radicals are reduced through an O2 diet.

What Experts Say about the O2 Diet

According to health experts, eating an O2 diet increases the level of antioxidants in the blood by 10 – 25% which can protect the body against cancer, heart disease and effects of aging. Other health experts claim that eating such a diet not only helps you fight disease and lose weight, but it also helps you gain more energy, increases mental clarity, reduces mental stress and increases libido.

According to Dr. Sandon, professor of clinical nutrition at the University of Texas South Western Medical Center, there is not enough evidence to support the use of ORAC points as a tool of weight loss. According to her, even if the food may increase antioxidants in the blood, the body may not use them to fight free radicals. She goes on to advise dieters to add a serving of low fat dairy and whole grains (250 calories) to boost protein and calcium levels.

Pros and Cons to the O2 Diet


  • Encourages you to take more fruits
  • Reduces the risk of cancer and cardiovascular diseases
  • No need to count calories, carbs or fats
  • Appreciated by dieters who understand the science of healthy eating


  • Need to keep track of daily ORAC points
  • May be expensive
  • Not targeted at weight loss

Sample O2 Diet Meal Plan

  • Breakfast - caramel pear and pecan French toast.
  • Lunch - plum and pecan spinach salad and pomegranate
  • Dinner - salmon with raspberry balsamic glaze, asparagus, a glass of sangria
  • Snack - dark chocolate or fresh fruits

The above is simply an example of an O2 diet. The idea of this diet is to eat plenty of fruits, vegetables and whole grains. You can also take low fat dairy products, fish, beans, spices and herbs. With this diet, items such as chocolate and wine can be taken in between meals.

The aim of this diet is to achieve a total of 30,000 ORAC points daily. With this diet you can eat as many vegetables as you like, but you have to monitor the amount of fruits, carbs and fats you take in order to lose weight.

People on this diet are encouraged to eliminate baked goodies, fat free and sugar free foods, fried foods, processed meats and processed foods, sweets, added sugars, soft drinks and trans fats.

Other health experts advise dieters that the success of any diet is not solely determined by the foods they take but exercise plays a crucial role in the success of any diet. Regular exercise reduces stress, helps one lose weight and improves their quality of sleep. Dieters are even encouraged to engage in regular sexual activity to improve their chances of success in weight loss and reducing stress.

Last Updated: Tuesday, December 25, 2012