How to Use a Nutrient Encyclopedia to Understand What Your Diet Is Missing
What a Nutrient Encyclopedia Contains
Nutrient Encyclopedia covers all essential vitamins (A, B1-B12, C, D, E, K) and minerals (calcium, magnesium, iron, zinc, iodine, selenium, etc.) with: biological functions, deficiency symptoms, toxicity thresholds, recommended daily intake by age and gender, top food sources (with amounts), and supplement guidance.
Identifying Nutritional Gaps
If you regularly avoid certain food groups, the encyclopedia helps you identify which nutrients are at risk. Dairy-free: calcium and vitamin D. Vegan: B12, iron (non-heme), zinc, omega-3s, iodine. Low-fat diet: fat-soluble vitamins (A, D, E, K). No sunlight exposure: vitamin D. Restricted diet: look up the skipped foods and note what nutrients they provided.
Understanding RDA vs. UL
RDA (Recommended Dietary Allowance) is the intake sufficient for 97.5% of healthy people. UL (Tolerable Upper Intake Level) is the maximum intake before adverse effects become likely. Staying between RDA and UL is the target. The encyclopedia shows both values for every nutrient to help you assess your supplement doses.
Pairing With Vitamin Deficiency Checker
Use the encyclopedia to understand what any nutrient does, then use Vitamin Deficiency Checker to assess whether you’re at risk for deficiencies based on your dietary patterns and symptoms.
Frequently Asked Questions
Explore the nutrient encyclopedia
Open Nutrient Encyclopedia to look up any vitamin or mineral and see its functions, sources, and RDA.
Open Nutrient Encyclopedia