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Nutrition Practice Quiz & Questions

Take a free practice quiz or point your phone at any Nutrition exam question for an instant, explained answer — macros, micros, and metabolism demystified, without the guesswork.

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01

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02

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03

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Read the reasoning behind the answer so it actually sticks.

Built for exactly this kind of question.

Intro nutrition courses mix hard science (metabolic pathways, nutrient functions) with shifting public guidelines, and questions often hinge on a specific number or exception. Cambo explains not just the right answer but the reasoning behind the recommendation, so the numbers actually stick.

Test yourself with real practice questions.

Which macronutrient provides the most calories per gram?

  1. ACarbohydrates
  2. BProtein
  3. CFat
  4. DFiber
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Answer
CFat
Fat provides about 9 calories per gram, more than double the roughly 4 calories per gram provided by carbohydrates or protein.

Which vitamin is primarily synthesized by the skin when exposed to sunlight?

  1. AVitamin C
  2. BVitamin D
  3. CVitamin B12
  4. DVitamin K
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Answer
BVitamin D
Vitamin D — UV exposure triggers a reaction in the skin that converts a cholesterol derivative into an active form of the vitamin.

What is the primary function of dietary fiber?

  1. AProvides quick energy to muscles
  2. BBuilds and repairs body tissue
  3. CAids digestion and promotes bowel regularity
  4. DTransports fat-soluble vitamins
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Answer
CAids digestion and promotes bowel regularity
Fiber isn't digested or absorbed — it adds bulk to stool and supports regular digestion, and soluble fiber also helps moderate blood sugar and cholesterol.

Which mineral deficiency is most commonly associated with iron-deficiency anemia?

  1. ACalcium
  2. BIron
  3. CPotassium
  4. DZinc
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Answer
BIron
Iron — it's essential for making hemoglobin, the protein in red blood cells that carries oxygen; too little leads to fatigue and anemia.

According to general dietary guidelines, which nutrient should make up the largest portion of a balanced plate?

  1. AProtein
  2. BFruits and vegetables
  3. CAdded sugars
  4. DSaturated fat
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Answer
BFruits and vegetables
Fruits and vegetables — most current guidelines recommend they fill about half of a balanced plate, alongside grains and protein.

What is basal metabolic rate (BMR)?

  1. AThe calories burned during vigorous exercise
  2. BThe minimum energy the body needs at complete rest to sustain basic functions
  3. CThe total calories consumed in a day
  4. DThe rate at which food moves through the digestive tract
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Answer
BThe minimum energy the body needs at complete rest to sustain basic functions
BMR is the energy the body needs at rest just to keep vital functions like breathing and circulation running — it typically makes up the largest share of total daily calorie needs.
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Questions, answered.

What does an intro Nutrition course typically cover?

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Macronutrients (carbs, protein, fat), micronutrients (vitamins and minerals), digestion and metabolism, energy balance, and how dietary guidelines apply across the lifespan.

What's the difference between macronutrients and micronutrients?

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Macronutrients (carbohydrates, protein, and fat) are needed in large amounts and provide energy; micronutrients (vitamins and minerals) are needed in small amounts and support specific body functions.

Are nutrition exams mostly memorization?

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There's a fair amount of memorizing specific nutrients and their functions, but most exams also test whether you can apply that knowledge to a scenario, like identifying a deficiency from a set of symptoms.

Is Cambo affiliated with any university?

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No. Cambo is an independent study tool and isn't produced, endorsed, or affiliated with any college or university.

How is Nutrition different from a full dietetics program?

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An intro Nutrition gen-ed course covers foundational science and guidelines for a general audience, while a dietetics program goes much deeper into clinical application, medical nutrition therapy, and counseling — usually as part of a dedicated major.

Can Cambo help with a nutrient-tracking or meal-planning assignment?

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Cambo is built for practice questions and explanations, not diet tracking — but it can help you understand the concepts (like reading a nutrition label or calculating macronutrient percentages) behind that kind of assignment.

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