Step 1: Understanding the Concept:
Food adulteration is the addition of harmful or inferior substances to food, which negatively impacts health. The question asks to identify the option that is NOT a negative health effect.
Step 2: Detailed Explanation:
- Lathyrism is a crippling neurological disease caused by eating Lathyrus sativus (khesari dal), often used as an adulterant in other pulses.
- Diarrhoea can result from consuming food adulterated with pathogenic bacteria or unhygienic substances.
- Liver disease can be caused by adulterants like aflatoxins or certain non-permitted food colors.
- Proper nutrition is the state of receiving adequate nutrients for health and growth. It is a positive outcome and the exact opposite of a bad effect of food adulteration, which often degrades the nutritional value of food.
Step 3: Final Answer:
Lathyrism, diarrhoea, and liver disease are all potential bad effects of food adulteration. Proper nutrition is a desired state of health, not a bad effect.