Question

Which of the following is found most in soybean ?

• A. Carbohydrate
• B. Protein
• C. Iodine
• D. Vitamin

Hint:

Soybeans = "Meat of the fields" – they contain about 40% high-quality complete protein, making them the richest plant-based protein source. Excellent for vegetarians and vegans!

Answer 1

The Correct Option is B

Step 1: Understanding soybeans as a food source.
Soybeans (Glycine max) are legumes native to East Asia and are one of the most widely consumed and versatile food crops globally. They are renowned for their exceptional nutritional profile.
Step 2: Nutritional composition of soybeans.
Soybeans are uniquely rich in various nutrients. Their approximate composition per 100 grams is:
Protein: 36-40% (one of the highest among plant foods)
Carbohydrates: 30% (including dietary fiber)
Fats: 20% (healthy polyunsaturated fats)
Water: 8-10%
Minerals: Includes iron, calcium, phosphorus, magnesium
Vitamins: Contains B-vitamins, vitamin K, and folate
Step 3: Analysis of each option.

(A) Carbohydrate: Incorrect. While soybeans contain carbohydrates (about 30%), this is not their most abundant nutrient.
(B) Protein: Correct. Soybeans are exceptionally high in protein (36-40%), making them one of the richest plant-based protein sources. They contain all essential amino acids, making them a complete protein.
(C) Iodine: Incorrect. Soybeans contain only trace amounts of iodine. Iodine is primarily found in seafood, iodized salt, and dairy products.
(D) Vitamin: Incorrect. While soybeans contain various vitamins (especially B-vitamins), vitamins are not present in the highest quantity compared to protein.
Step 4: Significance of soybean protein.
Soybeans are unique among plant foods because:
They provide complete protein (all essential amino acids)
They contain 2-3 times more protein than other legumes
They are the primary ingredient in many protein-rich products (tofu, tempeh, soy milk, textured vegetable protein)

Final Answer: (B) Protein.