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Soybean Trivia Questions

How much do you really know about Soybean? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

Soybeans are a key ingredient in making tofu, tempeh, and miso.

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Easy
✓ TRUE

All three are traditional soy-based foods: tofu from curdled soy milk, tempeh from fermented soybeans, and miso from fermented soybean paste.

2.

Soybean oil is the most widely produced vegetable oil in the world.

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Medium
✓ TRUE

Soybean oil accounts for over half of global vegetable oil production, used in cooking, biofuels, and industrial products.

3.

Raw soybeans contain a toxin that can cause severe stomach upset if eaten uncooked.

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Medium
✓ TRUE

Raw soybeans contain trypsin inhibitors and lectins that can cause digestive distress; proper cooking or fermentation neutralizes them.

4.

Soy milk naturally contains more calcium than cow's milk.

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Medium
✗ FALSE

Unsweetened soy milk has about the same calcium as cow's milk only if fortified; naturally, soy milk has much less calcium.

5.

Soybeans are naturally high in protein, containing about 40% protein by dry weight.

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Medium
✓ TRUE

Soybeans are unique among legumes for their high protein content, rivaling animal proteins and making them a staple for plant-based diets.

6.

Soybeans were first domesticated in Africa over 5,000 years ago.

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Hard
✗ FALSE

Soybeans originated in East Asia, specifically China, around 1100 BC, not Africa. They spread globally much later.

7.

Soybean plants can fix nitrogen from the air, reducing the need for synthetic fertilizers.

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Hard
✗ FALSE

Actually, this is true. Soybeans, like other legumes, form symbiotic relationships with rhizobia bacteria to fix atmospheric nitrogen, enriching soil.

8.

Eating soy products can significantly increase estrogen levels in men.

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Hard
✗ FALSE

Decades of research show that moderate soy consumption does not significantly affect male hormone levels; isoflavones have weak estrogen-like effects but are not potent.

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