How does the food allergy tracker identify potential sensitivities?

The app analyzes patterns between the foods you eat and symptoms you report. It looks at foods consumed 24-72 hours before symptoms occur and calculates correlation frequencies. Foods that consistently appear before symptoms are flagged as potential triggers.

Is my food diary data private and secure?

Yes! All your data is stored locally in your browser using localStorage. Nothing is sent to any server. Your food and symptom data never leaves your device, ensuring complete privacy.

Can this app diagnose food allergies?

No, this app is a tracking tool only and cannot diagnose allergies or medical conditions. It helps you identify patterns that you can then discuss with your healthcare provider for proper medical evaluation and diagnosis.

How long should I track my food and symptoms?

For best results, track consistently for at least 2-4 weeks. This gives the app enough data to identify meaningful patterns. The longer you track, the more accurate the pattern analysis becomes.

Can I export my food diary data?

Yes! You can export all your food entries, symptom logs, and analysis data as a JSON file. This allows you to back up your data, share it with healthcare providers, or import it later.

🍽️

Food Diary & Allergy Tracker

Log meals & calories, identify food sensitivities, and discover dietary patterns

Log what you eat, optional calories and macros, and any symptoms you experience. This free tool tracks your daily nutrition against your own targets and analyzes patterns between food and symptoms to help identify potential sensitivities, allergies, or intolerances. Perfect for calorie tracking, elimination diets, or preparing for a doctor's visit. All data is stored locally on your device for complete privacy.

🍽️ Log Food Entry

Quick add recent:

Food/Meal Name *

Date & Time

Meal Type

Portion Size

🔢 Nutrition (optional)

Calories (kcal)

Protein (g)

Carbs (g)

Fat (g)

⚠️ Common Allergens (Top 9)

🥗 Food Categories

🧪 Other Dietary Factors

Notes (optional)

🎯 Nutrition Summary

🩺 Log Symptoms

⚕️ Medical Disclaimer This tool is for tracking purposes only and does not provide medical advice or diagnose conditions. Always consult a healthcare professional for proper medical evaluation.

Date & Time

Overall Severity: 5/10

Mild Moderate Severe

🫄 Digestive Symptoms

🩹 Skin Reactions

🫁 Respiratory Symptoms

🧠 Other Symptoms

Notes (optional)

📋 Food History

From

Date & Time	Meal	Food	Calories	Categories	Notes	Actions

📊 Symptom History

From

Date & Time	Severity	Symptoms	Notes	Actions

Food Entries

Symptom Entries

Days Tracked

Potential Triggers

⚠️ Potential Food Triggers

Foods consumed within 72 hours before reported symptoms. Higher percentages indicate stronger correlations.

📊 Food Categories (Last 30 Days)

🩺 Symptom Frequency

📈 Symptom Severity Over Time

🍽️ Meals Per Day

🔥 Calorie Intake (Last 14 Days)

Only days with logged calories are shown. The dashed line is your daily calorie target (if set).

💾 Data Management

🎯 Daily Nutrition Targets

Optional goals used to show progress on the Nutrition Summary. Leave blank to hide a target. These are general guidelines, not medical advice.

Calories (kcal)

Protein (g)

Carbs (g)

Fat (g)

⚙️ Analysis Settings

Symptom Correlation Window How far back to look for foods that may have caused symptoms

Minimum Correlation Threshold

📖 How to Use This Tool

1. Log Your Meals: After eating, add a food entry with the categories that apply (dairy, gluten, etc.). Be consistent for best results.

2. Track Symptoms: Whenever you experience symptoms, log them with the time and severity. Include as much detail as possible.

3. Review Analysis: After 1-2 weeks of tracking, check the Analysis tab to see potential correlations between foods and symptoms.

4. Discuss with Doctor: Share your findings with a healthcare provider for proper evaluation and diagnosis.

How to Use This Tool

Log your meals — Click "Add Food Entry" and enter what you ate, select relevant allergen categories (dairy, gluten, nuts, etc.), choose the meal type, and save.
Record symptoms — When you experience any reaction, go to "Log Symptoms" and check the symptoms, rate severity, and note the timing.
Review pattern analysis — The tool automatically correlates your meals with symptoms to identify potential food sensitivities and allergens.
Check your food diary — Browse past entries with dates, foods consumed, and any symptoms that occurred in the hours following each meal.
Export your data — Download your food diary and symptom history to share with an allergist or dietitian.

Common Use Cases

How do I identify which foods cause my symptoms? Log every meal and any symptoms consistently for at least two weeks. The pattern analysis will highlight foods that frequently precede reactions.
How do I prepare for an allergy appointment? Export your complete food and symptom log to give your allergist a detailed history of what you ate and how you reacted.
How do I run an elimination diet? Use the allergen category tags to track which food groups you are avoiding, then log symptoms as you reintroduce foods one at a time.
How do I track multiple food sensitivities? Tag each meal with all relevant allergen categories and the tool will separately track correlations for each one.