Sir: These days children — and even adults — are more inclined towards ‘ready to eat’ food. According to them, it saves time and is good in taste too when compared to home-cooked meals. A recent study has proved that homemade food is more hygienic and fresh when compared to packet food because the latter is pre-made and has lots of unhealthy preservatives, which may cause many diseases. Today’s biggest health issue is of obesity and hypertension, which is mainly due to instant food, but we are denying the factual effect of this on our health and keep eating such food. A healthy family needs to avoid such unhealthy habits to prevent unwanted illness. SARA KHAN Karachi