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Vitamin Quiz

Vitamin Quiz - Free Diet Nutrition Test - FreudlyTake a free vitamin quiz to explore your vitamin knowledge and discover your results. Quick, no sign-up needed. Start now!en
In about 10 minutes, this vitamin quiz covers 16 questions on vitamin functions, sources, deficiency patterns, cooking, and safe use. Your result shows how strong your foundational knowledge is, helping you identify topics to review and have more informed conversations about nutrition with a healthcare professional.
Questions: 1610 minutes
Vitamin Quiz: test ticket with numbers
July 22, 2026July 22, 2026Material has been updatedJuly 22, 2026Material has been published
8,109 views
715 completions
640 likes
Daniel HallPsychologist · Test reviewer
640 likes
Scale Explorer

How the Scales are Structured

Vitamin KnowledgeVK
Measures general knowledge of vitamins, including functions, food sources, cooking choices, and supplement safety basics.
example score4/16
4/16Emerging Foundationsexample score
0 – 6Emerging Foundations
7 – 12Developing Knowledge
13 – 16Strong Knowledge
A score of 4 falls in Emerging Foundations, suggesting you recognize some vitamin basics but would benefit from reviewing major functions, sources, and safety principles.
just completed the test
DATA-BASED USER COHORTS

Who Usually Takes This Test?

Everyday health learners
41%OF USERS
People who want to check and refresh basic vitamin knowledge for smarter food and supplement choices.
Fitness and meal planners
34%OF USERS
Active people tracking nutrition who want to understand vitamin roles, food sources, and cooking impacts.
Cautious supplement users
25%OF USERS
People considering new vitamins or higher doses who want a safety-focused reality check on what they know.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Shaded area — where most people score
Dot — the average
You — your score lands on each curve after the test— your score, after the test
Vitamin KnowledgeVK
You?
Average10.7
Typical rangeTypical8 – 13.4
Possible0 – 16
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SAMPLE QUESTIONS

Example Questions From the Test

    • Vitamins B6, B12, C, and D
    • Vitamins E, K, B12, and C
    • Vitamins A, C, D, and folate
    • Vitamins A, D, E, and K
    • Forming collagen in connective tissue
    • Acting as the main vitamin required for blood clotting
    • Providing calories for immediate energy
    • Supporting calcium absorption and bone mineralization
    • Vitamin E
    • Vitamin B1
    • Vitamin A
    • Vitamin K
WHAT THE TEST MEASURES

Vitamin Quiz - Description and methodology of the test

People who want to understand vitamins more clearly can use this assessment to check practical nutrition knowledge before changing a diet or supplement routine. The vitamin quiz suits adults seeking a structured self-check about food sources, deficiency patterns, cooking choices, and safety. For someone asking which vitamins should I take, the result identifies topics to discuss with a healthcare professional rather than offering an individualized recommendation.

What This Assessment Measures

Rather than estimating blood levels or diagnosing deficiency, the questionnaire examines whether a respondent can connect vitamins with their functions, food sources, deficiency patterns, cooking methods, and safety considerations. Its themes include fat- and water-soluble vitamins, vision, bone mineralization, blood clotting, energy metabolism, pregnancy-related folate, iron absorption, and food or medication interactions. When a reader asks what vitamins should I take, the result points to topics for study, not a product or dose.

The result uses Vitamin Knowledge (0-16), with these bands:

  • Emerging Foundations (0-6) shows that core functions, sources, and safety principles need more review.
  • Developing Knowledge (7-12) shows a workable grasp with room to sharpen distinctions and practical applications.
  • Strong Knowledge (13-16) shows well-rounded knowledge for safer nutrition decisions.

These labels describe knowledge demonstrated in the answers, not nutrient status.

Methodology and Evidence Base

Each question presents four answer choices, and the respondent selects the option that best matches established nutrition knowledge. The scoring summarizes performance across factual items into the displayed educational result; it does not estimate blood concentrations, dietary adequacy, or symptom cause.

Its closest conceptual reference is the Micronutrient Knowledge Questionnaire (Augustine et al., 2012), which examines practical knowledge of micronutrient functions, sources, and deficiency-related information. This online questionnaire is conceptually consistent with that work, not an adaptation or validation of it. Adult nutrition-knowledge studies by Jones et al. (2015) and Parmenter and Wardle (1999) support clear domains and test construction, while Trakman et al. (2017) emphasizes careful development and validation of knowledge measures.

Because the displayed score is unvalidated, it has no established norms or clinical cutoffs. Any decision about what supplements should I take depends on diet, symptoms, pregnancy, medicines, and professional advice. Responses can also reflect current attention, memory, interpretation of wording, and willingness to answer accurately. Questions about supplements make this a supplement quiz for basic safety learning, but its value is educational.

Literature:
  • Augustine LF, Vazir S, Fernandez Rao S, Vishnuvardhana Rao M, Laxmaiah A, Ravinder P, Vikas Rao V, Madhavan Nair K. Psychometric validation of a knowledge questionnaire on micronutrients among adolescents and its relationship to micronutrient status of 15-19-year-old adolescent boys, Hyderabad, India. Public Health Nutrition. 2012;15(7):1182-1189. 10.1017/S1368980012000055
  • Jones AM, Lamp C, Neelon M, Nicholson Y, Schneider C, Wooten Swanson P, Zidenberg-Cherr S. Reliability and validity of nutrition knowledge questionnaire for adults. Journal of Nutrition Education and Behavior. 2015;47(1):69-74. 10.1016/j.jneb.2014.08.003
  • Parmenter K, Wardle J. Development of a general nutrition knowledge questionnaire for adults. European Journal of Clinical Nutrition. 1999;53(4):298-308. 10.1038/sj.ejcn.1600726
  • Trakman GL, Forsyth A, Hoye R, Belski R. Developing and validating a nutrition knowledge questionnaire: key methods and considerations. Public Health Nutrition. 2017;20(15):2670-2679. 10.1017/S1368980017001471

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