Celiac Diet Calculator
Analyze nutritional gaps in a gluten-free diet. Estimates adequacy of iron, calcium, vitamin D, folate, B12, zinc, and fiber for celiac disease patients.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Nutrients below 70% RDA
6
How to Use This Calculator
- Select your sex and enter your age in years.
- Enter your current daily caloric intake in kcal.
- Rate your current diet quality on the scale provided.
- Review the output recommendations for gluten-free macronutrient targets.
- Work with a registered dietitian to personalize these targets for celiac management.
What each input means
- Sex (0 = Female, 1 = Male)
- Biological sex affects RDA for iron, zinc, and fiber.
- Age (years)
- Age affects calcium, vitamin D, and iron requirements.
- Daily caloric intake (kcal)
- Current average daily caloric intake.
- GF diet quality (1-3)
- 1 = Mostly processed GF products, 2 = Mixed, 3 = Whole-foods based.
- GF multivitamin (0 = No, 1 = Yes)
- Whether taking a gluten-free multivitamin/mineral supplement.
- Dairy intake (0-2)
- 0 = None/vegan, 1 = Limited (some cheese/yogurt), 2 = Adequate (2+ servings/day).
What each result means
- Nutrients below 70% RDA
- Number of key nutrients below adequate levels.
- Average nutrient adequacy (%)
- Mean adequacy across all 7 tracked nutrients.
- Iron adequacy (%)
- Percentage of iron RDA met. Common deficiency in celiac.
- Calcium adequacy (%)
- Percentage of calcium RDA met.
- Vitamin D adequacy (%)
- Percentage of vitamin D RDA met.
- Folate adequacy (%)
- Percentage of folate RDA met. Major gap without fortified wheat.
- Vitamin B12 adequacy (%)
- Percentage of B12 RDA met.
- Zinc adequacy (%)
- Percentage of zinc RDA met.
- Fiber adequacy (%)
- Percentage of fiber RDA met. GF grains are lower in fiber.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersSex (0 = Female, 1 = Male) = 0, Age (years) = 35, Daily caloric intake (kcal) = 2000, GF diet quality (1-3) = 2 = 6 input(s) provided
- Calculate Nutrients below 70% RDANutrients below 70% RDA6 = 6
- Calculate Average nutrient adequacy47 = 47
- Calculate Iron adequacyIron adequacy = min(100, ironPct + mvBoost)39 = 39
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