Don't be intimidated by the amount of text you see here. The diet is actually fairly easy to follow, but it works best if you understand more about how your body uses the energy in food.

Rule #1 To lose weight, you must eat fewer calories than you burn. If you eat more calories than you burn, you gain weight. It is as simple as that.
Rule #2 To keep your metabolism going, you need to eat regularly and get regular exercise. Eat 5 to 6 times a day and exercise 3 times a week for at least an hour each time. If you starve yourself, or have long stretches of feeling hungry, your body will go into 'starvation mode' and lower your metabolism to preserve fat reserves.
Rule #3 During your diet, limit your carbohydrates especially around exercise time, and in the evening. Your body will convert fat into energy if your metabolism is working and it runs out of carbohydrates to burn. Don't eat for an hour after exercising so your body uses its fat reserves.
Rule #4 Always, always, always read the labels! Be suspicious of foods labelled "diet", "light", "low carbs", "low calorie", or "no fat" — if a food is low in one thing, it's often high in another. Don't consume foods containing gums (locust bean gum, guar gum, xanthum gum) or starches (cornstarch, tapioca starch). And never consume anything with high fructose corn syrup.
Rule #5 Don't take these rules to extremes. Don't starve yourself or nibble constantly, don't exercise every day, and don't try to eliminate carbohydrates or fats altogether. Have patience, pace yourself, and you can reasonably expect to lose about ½ to 1 kg (1 to 2 lbs) per week.

Background

When we returned from Canada in 2008, I set out to lose the weight I'd gained while there. I managed to lose all that weight, plus a few extra kilos that I'd collected over the years (for a total of 15.7 kg = 35 lbs), and I felt really healthy as a result. I created a diet-plan for myself by combining extensive reading with some common sense. This is the result.

Virtually every diet I've ever seen consists of foods I don't like to eat. But for a diet to be successful, you need to be able to maintain it, then maintain your weight after you reach your target. If you don't like to eat the food, then you're more likely to cheat, and even if you do finish your diet, you'll regain your lost weight because you revert to foods you like but haven't 'trained' for.

So you need to eat foods you like, but you also have to 'know' your food — understand what is in it and how your body breaks it down. When you buy food, read the label every time. Check out what you are eating, and look especially at calories, fillers/thickeners (like gums and starches), and sweeteners.

For example:

Introduction

Imagine a special vehicle with a fuel tank that can expand and contract. This vehicle also has a special converter which will convert different types of fuel into the type it needs, but the converter motor needs to burn some fuel to do the conversion.

If you keep putting more fuel into the vehicle than you use driving around, the fuel tank fills up and expands. If you drive around and burn more fuel than you put in, the fuel tank contracts. If you put a type of fuel which needs converting, the converter kicks in — you'll have put in more fuel, but your tank won't get as big.

This special vehicle is YOU! Your body acts as a fuel tank which stores energy in fat, expanding and contracting depending upon whether you burn less or more energy than you eat. If you keep your body's engine running and revving, even when parked on the couch, you continue to burn more energy. But if you eat too little and move too little, your engine is smart enough to rev very low — and ironically, if you don't eat often enough, you can actually gain weight.

Tools

One thing you absolutely must have is a digital kitchen scale. Weighing food is much more consistent and accurate than measuring volume. (I use Soehnle for their accuracy, style and affordability.)

The other essential tool is a calorie-counting application to help you calculate calories, plan meals and track progress. I've used various apps including MyFitnessPal.

Things to Know

Exercise

Sorry, but you must exercise in some form in order for your diet to be successful. If you don't, your body will just get used to eating less, lower your metabolism, and you won't lose weight. Exercising forces your body to raise its metabolism.

One of the best, easiest and cheapest forms of exercise is quick-walking. It burns almost as many calories as jogging over the same distance, it's much easier on the joints, and it is more effective at burning fat. Exercise at least 3 times a week, at least 60 minutes each time, working up a sweat for at least 40 minutes.

Key exercise tips:

Raise Your Metabolism

Ways to get your body to burn more calories:

Don't Eat

Watch Out for Misleading Labels

Dieting Advice

The Trick in Summary

Crash Diet

Need to lose weight quickly? Here's my crash diet:

And whatever you do: no food for one hour before and after exercising; no food for one hour before bedtime; no fried foods; no fruit juices; no soft drinks with added sugar; no artificial sweeteners; no added starches or gums; no alcohol.