If we consume an apple a day then we will be healthy and no need to go for medical check-up.Apple is a most nutrious fruit.

I completely agree with your justification of the proverb . In a broader sense , it emphasizes the importance of fruits in general for maintaining good health.

Consumption of fruit reduces various kinds of heart diseases, boost immunity power as fulfill daily diets.

You picked it right as fruits contain educate quantity of all the major nutrients that are required to boost the health in general and prevent us from diseases.

Giving priority to the natural fertilzers means saving life in broad concept.

Organic fertilizers are good for human health as well as health of soil. Chemical fertilizers are hazarsois for humans as well as soil.

Good luck