Body Mass Index

Body Mass Index (BMI) is one method of assessing a person’s body weight. BMI provides an indication of how much weight a person carries for their height and assesses whether the amount of weight is suitable for their height. It is important to take note that BMI does not distinguish between lean body mass (such as muscle mass) and fat mass. BMI is therefore not suitable for athletes who require a more in depth assessment.

How to calculate your BMI:

  1. Take your weight in kilograms (e.g. 74 kg)
  2. Divide your weight by your height in metres squared (e.g. 74 kg ÷ (1.68 m)²)
  3. The answer is your BMI (e.g. 26.2 kg/m²). Use the table below to interpret your BMI.

If your BMI indicates that you are overweight you have an increased risk for high blood pressure, heart disease, high blood cholesterol, diabetes, stroke, gallbladder disease, arthritis, sleep disorders, respiratory problems, and various types of cancer. Since prevention is better than cure, we would advise you to book an appointment.

Fad Diets

Fad diets are diets aimed at promoting quick weight loss, but are not based on sound scientific evidence. Fad diets usually involve very restrictive eating patterns or unusual food combinations. The advocates of fad diets do not need to prove what they say or conduct credible research, but typically make use of anecdotal evidence, theories and testimonials. Some fad diets are based on distorted bits of legitimate information or simplistic conclusions from complex studies.

Diet & health recommendations should follow years of sound scientific research before being offered to the public

Short-term: ↓ kJ in disguise

Ritual & sacrifice

Start with a fact then leap from one erroneous conclusion to the next

Makes one wonder how 1000’s of scientists could have missed this

most diets can be categorised into three main types:

low carbohydrate with the emphasis on high protein;

low carbohydrate with the emphasis on high fat; and

high carbohydrate with an emphasis on low fat


Red flags

  • Rapid weight loss of more than
  • Magical fat-burning effects of food or ingredients in food
  • Quantities and limitations, one type of food
  • Specific food combinations based on genes or blood type
  • Rigid menus
  • No need to exercise
  • Quick fix solutions and not changing habits
  • Based on single study
  • Based on “secret” doctors haven’t discovered or don’t want you to know about
  • Same diet for everyone, not individualised
  • Suggest that you can’t lose weight due to allergies, intolerances or infections
  • Detoxing
  • Recommend eating non-food substances such as cotton – wool
  • It sounds too good to be true
  • Elimination or severe limitation of a specific food group
  • Recommendations are made to help sell a product

What is still the best method to lose weight and keep it off? Exercise regularly and eat a variety of foods with moderate portions.