This poses a very interesting problem before some people who know the facts and benefits of healthy eating and a well balanced diet plan, but implementing a healthy eating plan is quite a challenge for a few.
The problem is basically of two types while implementing a healthy eating plan.
All the marketing hype led people to believe that healthy eating is all about an ideal diet which is costly and a lot of food supplements which are even more beyond the reach of common people. All they try is to religiously consume the daily recommended dose of all vitamins and minerals as prescribed by health authorities or government agencies. For them this is all they need to reap the benefits of healthy eating habit.
Without denying the role of ideal diet and quality supplements, the fact is healthy eating is not limited by costly nutritious diets and supplements. Even if you try, it is very difficult to reach the goal of all the recommended doses of vitamins and minerals in your diet. Instead what is required is a balanced diet which is not necessarily costly. If affordability comes into question, then a simple diet plan along with certain health rules well defines a healthy eating habit. Irony is many people are over fed but undernourished. And there are much more concepts to healthy eating apart from a balanced diet which really define good and disease free health.
The second type of problem is just the challenge to stick to a restrictive healthy eating. Some people know all the rules of good health but implementing such rules and bringing discipline is very hard for them. This is really a big challenge for most.
Going by ideal health rules, food is definitely not a toy to play with. Eating is a responsibility and eating is a duty. But at the same time eating is also a heavenly pleasure for most people. The need of taking delicious foods is as important as any other thing in life. How can you just ignore that urge to take mouth watering but health hazardous foods?
So still knowing this, the choice of bringing discipline in our food habits is certainly difficult. Solution is adopting a restrictive healthy eating which is more like a compromise between ideal food habits and the damaging ones. In youth when you are full of vitality, you have the choice to say "I can eat everything and nothing really hurts me". But soon time will come when you will have to say "I can eat nothing, everything hurts me". So a few restriction in your food will allow you to even take junk foods occasionally at any point of your life.
So one grand secret of healthful living is learning to live within limitations. Body has a tremendous capacity of adaptation and toleration but after all there is a limit. And when that limit is crossed, body starts striking back and sometime when neglected goes into pieces. That is what defines a restrictive healthy eating.