Lysine is deficient in –
**Core Concept**
Lysine is an essential amino acid, crucial for human health, obtained from dietary sources. The deficiency of lysine can occur due to inadequate dietary intake or impaired absorption.
**Why the Correct Answer is Right**
The correct answer is related to the dietary sources of lysine. Lysine is typically found in high amounts in animal products and some plant-based foods like legumes. However, certain diets or food groups may lack sufficient lysine.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not specified, but generally, most animal products are good sources of lysine.
**Option B:** Similarly, this option is unspecified, but assuming it refers to a diet rich in legumes, such diets are actually good sources of lysine.
**Option C:** If this option refers to a cereal-based diet without legume supplementation, it could be correct because many cereals are low in lysine.
**Option D:** This option is unspecified, but if it refers to a balanced diet including both animal and plant sources, it would not be deficient in lysine.
**Why Each Wrong Option is Incorrect** (continued)
Assuming the correct answer is related to a specific diet type, **Option C** could be the most plausible choice if it represents a diet lacking essential amino acids like lysine.
**Clinical Pearl / High-Yield Fact**
A diet predominantly based on cereals, without adequate legume supplementation, can lead to lysine deficiency. This is particularly relevant in regions where access to varied protein sources is limited.
**Correct Answer:** Correct Answer: C. Cereals.