๐Ÿ” How to Search & Understand Your Results

Get the most accurate results from the NutrientShield Calculator โ€” and know what every score, badge, and warning means

โœ… Verified Working Searches

These searches have been tested and work correctly. Copy them exactly:

โœ“ Apple golden
โœ“ Banana
โœ“ Spinach
โœ“ Strawberries raw
โœ“ Peaches raw
โœ“ Peaches yellow raw
โœ“ Egg whole raw
โœ“ Chicken breast raw
โœ“ Beef ground raw
โœ“ Quaker oats old fashion
โœ“ 200g Chicken Breast raw
๐Ÿ’ก Pro Tip: Be specific about the variety or preparation AND put the main food name FIRST! Word order matters!

โš–๏ธ Searching with Quantities

Add weight measurements before the food name for custom portions:

โœ“ 200g Chicken Breast raw
โœ“ 5oz Salmon
โœ“ 1lb Ground beef
โœ“ 150g Brown rice

Supported Units:

  • Grams: 200g, 150g
  • Kilograms: 1kg, 0.5kg
  • Ounces: 5oz, 8oz
  • Pounds: 1lb, 0.5lb
๐Ÿ’ก Default Serving: If you don't specify a quantity, the calculator uses 100g (standard nutrition serving size).

๐Ÿท๏ธ Using Barcode (UPC) Codes

For packaged foods, you can search by the 12-digit UPC barcode:

โœ“ 041220602117
โœ“ 030000010204
๐Ÿ’ก Where to Find UPC: Look for the barcode on food packaging - it's usually a 12-digit number under the bars.

๐Ÿ“‹ Search Best Practices

๐Ÿ”ด WORD ORDER MATTERS!

โš ๏ธ CRITICAL: The order of words in your search makes a HUGE difference. Always put the main food FIRST!
โœ“ Beef ground raw
โœ— Ground beef raw (finds flaxseed - WRONG!)
โœ“ Chicken breast raw
โœ— Raw chicken breast (may find wrong item)
โœ“ Apple golden
โœ— Golden apple (may not find it)

โœ… DO:

  • Main food FIRST: "Beef ground raw" NOT "Ground beef raw"
  • Use exact tested terms: Copy examples from this guide exactly
  • Use specific variety names: "Apple golden" instead of just "apple"
  • Include preparation method LAST: "Chicken breast raw" or "Broccoli steamed"
  • Add brand names for packaged foods: "Quaker oats old fashion"
  • Use plural when appropriate: "Strawberries raw" NOT "Strawberry raw"
  • Use UPC codes for exact matches on branded products

โŒ AVOID:

โœ— apple (too generic - might find apple juice, crabapples, or apple pie)
โœ— strawberry (use plural: strawberries)
โœ— chiken (typos will not find results)
โœ— ground beef (wrong order - finds flaxseed!)
โœ— raw chicken (wrong order)
โš ๏ธ Important: Generic terms or wrong word order will return incorrect results. Follow the examples in this guide EXACTLY!

๐Ÿฅ— Common Foods - Quick Reference

Fruits:

  • "Banana" or "Banana raw"
  • "Apple golden" or "Apple fuji"
  • "Orange navel" or "Orange valencia"
  • "Strawberries raw" (use plural!)
  • "Peaches raw" or "Peaches yellow raw"
  • "Grapes red"

Vegetables:

  • "Broccoli raw" or "Broccoli cooked"
  • "Spinach raw" or "Spinach cooked"
  • "Carrot raw"
  • "Sweet potato baked"

Proteins:

  • "Chicken breast raw" or "Chicken breast cooked"
  • "Egg whole raw" or "Egg whole cooked"
  • "Salmon raw" or "Salmon cooked"
  • "Beef ground raw" (NOT "Ground beef raw"!)
  • "Turkey breast raw"
  • "Pork chop raw"

Grains & Breads:

  • "Quaker oats old fashion"
  • "Brown rice cooked"
  • "Quinoa cooked"

Breads (Use Brand Names!):

๐Ÿ’ก Best Practice for Bread: Include the brand name for most accurate results!
  • Popular Brands: Nature's Own, Sara Lee, Arnold, Dave's Killer Bread, Pepperidge Farm
  • Organic/Sprouted: Food For Life (Ezekiel), Silver Hills, Rudi's Organic Bakery
  • Store Brands: 365 by Whole Foods, Trader Joe's

Examples:

  • "Nature's Own whole wheat bread"
  • "Dave's Killer Bread"
  • "Sara Lee wheat bread"
  • "Ezekiel bread" (Food For Life brand)
  • "whole wheat bread" (generic - finds a branded version)
โš ๏ธ Avoid: Don't search "bread whole wheat" or "wheat bread" - wrong word order finds incorrect items!

๐Ÿ”ง Not Finding What You Need?

Try These Tips:

  • Add brand name first: "Nature's Own whole wheat bread" instead of just "whole wheat bread"
  • Add variety/type: Instead of "apple", try "apple golden", "apple gala", or "apple fuji"
  • Specify raw vs cooked: "chicken breast raw" vs "chicken breast cooked"
  • Use plural for fruits: "Strawberries raw" instead of "Strawberry"
  • Put main food FIRST: "Beef ground raw" NOT "Ground beef raw"
  • Check the barcode: Use the 12-digit UPC for packaged items
๐Ÿ’ก Still Can't Find It? The database contains over 2 million foods from the USDA Food Data Central. If you can't find something, try searching with different terms or check the food label for the UPC barcode.

๐Ÿ“Š Food Quality Scores

This section appears for packaged and branded foods. It shows three independent scores that together give you a complete picture of food quality.

Nutri-Score (A through E)

A European nutrition grading system that rates overall nutritional quality on an A-to-E scale. It factors in calories, sugar, saturated fat, sodium (bad) versus fiber, protein, fruits/vegetables/nuts content (good).

A B C D E
โ† A = Best nutritional quality (e.g. fresh fruits, vegetables)
A B C D E
โ† E = Worst nutritional quality (e.g. candy, chips, soda)
๐Ÿ’ก Good to know: Nutri-Score compares foods within the same category. An "A" olive oil is the best oil โ€” not the same as an "A" vegetable. Whole foods from the USDA (fruits, vegetables, raw meats) don't have Nutri-Scores because this system applies to packaged products.

NOVA Processing Level (1 through 4)

The NOVA classification tells you how processed a food is. Developed by researchers at the University of Sรฃo Paulo, it's now used by the WHO and governments worldwide.

๐Ÿฅฌ NOVA 1: Unprocessed Whole foods as they come from nature โ€” fruits, vegetables, eggs, fresh meat, plain rice
๐Ÿงˆ NOVA 2: Culinary Ingredient Items used in cooking โ€” oils, butter, sugar, salt, flour
๐Ÿฅซ NOVA 3: Processed Simple processed foods โ€” canned vegetables, cheese, fresh bread, cured meats
โš ๏ธ NOVA 4: Ultra-Processed Industrial formulations โ€” soda, candy, instant noodles, hot dogs, chips, most fast food
โš ๏ธ Why NOVA 4 matters: Multiple large-scale studies link ultra-processed food consumption to increased risk of obesity, heart disease, type 2 diabetes, and certain cancers. NOVA 4 foods typically contain additives you wouldn't find in a home kitchen โ€” emulsifiers, flavor enhancers, artificial colors, and preservatives.

PRAL Acid/Alkaline Score

PRAL (Potential Renal Acid Load) measures whether a food creates an acid or alkaline effect in your body after digestion. This isn't about how the food tastes โ€” lemons are acidic but have an alkaline PRAL. It measures the acid load your kidneys have to process.

๐ŸŸข Alkaline (-3.2) Negative score = alkaline-forming. Most fruits, vegetables, and herbs.
โšช Neutral (0.4) Near zero = neutral. Fats, oils, some grains.
๐Ÿ”ด Acidic (+8.7) Positive score = acid-forming. Meat, cheese, eggs, fish, processed grains.

So which is "better" โ€” alkaline or acidic?

Neither one is inherently better โ€” balance is what matters. Your body maintains blood pH at exactly 7.35โ€“7.45 regardless of what you eat. You cannot make your blood "more alkaline" with food. What PRAL actually measures is the acid load your kidneys have to handle.

๐ŸŸข Alkaline-forming foods (negative PRAL)

Fruits, vegetables, herbs, most plant foods. These are the foods every nutrition guideline tells you to eat more of โ€” but they're healthy because of their vitamins, minerals, fiber, and antioxidants, not because they're "alkaline." The alkaline effect is a marker of nutrient density, not the cause of the benefit.

๐Ÿ”ด Acid-forming foods (positive PRAL)

Meat, eggs, cheese, fish, grains. These are essential too โ€” they provide protein, B12, iron, zinc, and other nutrients that are difficult to get from plants alone. A chicken breast with a PRAL of +8.7 isn't "bad" for you โ€” it's a great protein source. An egg at +5.6 provides choline you can't easily get elsewhere.

โš ๏ธ When acid load becomes a problem: The concern isn't individual acid-forming foods โ€” it's when someone's entire diet is acid-heavy with zero balance. A diet of mostly meat, cheese, processed grains, soda, and little-to-no produce creates a chronically high renal acid load. Over time, this is associated with: increased calcium loss through urine (bone density concern), higher kidney stone risk, accelerated kidney function decline in people with existing kidney issues, and increased muscle wasting in older adults.
๐Ÿ’ก What to look for in your results: The PRAL badge isn't labeling foods as "good" or "bad." It's showing your overall balance. If every food in your analysis shows ๐Ÿ”ด Acidic, you're probably not eating enough produce โ€” add some vegetables and fruit to balance things out. If you see a healthy mix of ๐ŸŸข and ๐Ÿ”ด, you're in good shape. You don't need to eliminate acid-forming foods โ€” just pair that steak with a salad.

The formula is based on published research by Remer & Manz (1995, Journal of the American Dietetic Association) and uses protein, phosphorus, potassium, magnesium, and calcium โ€” all nutrients already measured in your food analysis.

๐Ÿ”ฌ Ingredient Safety Scan

This section scans the actual ingredient lists of branded foods against a database of additives that are banned or restricted in other countries but still allowed in the US. Each flagged ingredient shows:

๐Ÿšซ BANNED BANNED

This substance has been fully prohibited in one or more countries due to safety concerns. Examples: Brominated Vegetable Oil (BVO, banned by FDA in 2024), Titanium Dioxide (banned in EU since 2022).

โš ๏ธ DANGER DANGER

Strong evidence of harm. Linked to serious health effects in studies โ€” cancer, organ damage, or developmental issues.

โšก CAUTION CAUTION

Moderate concern. May cause reactions in sensitive individuals, linked to hyperactivity in children, or has ongoing regulatory debate. Examples: artificial food dyes (Red 40, Yellow 5), sodium benzoate, MSG.

"Found in" shows which of your foods contains this ingredient. When the same additive appears in multiple foods, they're grouped together so you can see the full picture at once.

"Restricted/Banned in" lists which countries have taken action โ€” whether that's a full ban, a mandatory warning label, or concentration limits.

๐Ÿ’ก Important context: A "CAUTION" rating doesn't mean the food will harm you in one serving. It means there's credible scientific evidence warranting awareness. The dose makes the poison โ€” occasional exposure is different from daily consumption. This scan helps you make informed choices, not create fear.

๐Ÿงช Additive Analysis (E-Numbers)

E-numbers are the European classification system for food additives. Every additive approved for use in food gets an E-number (E100 = Curcumin, E621 = MSG, etc.). This section scans your foods' additive lists from Open Food Facts and rates each one:

BANNED Prohibited in at least one major market (EU, US, Japan, etc.)
AVOID Significant health concerns โ€” carcinogen links, organ damage, endocrine disruption
CAUTION Some concerns โ€” allergic reactions, gut microbiome disruption, sensitivity triggers
SAFE No known concerns โ€” natural or well-studied additives (these are NOT shown in results)

The difference between this section and the Ingredient Safety Scan above: the Ingredient Safety Scan checks USDA branded food ingredient lists for known hazardous names (Red 40, BVO, etc.). The E-Number Analysis uses Open Food Facts' pre-tagged additive data with European E-number classifications. Some foods may appear in both โ€” that's two independent checks confirming the same concern.

๐Ÿงฌ Medicinal Properties Identified

When your food list includes herbs, spices, or medicinal foods (turmeric, ginger, garlic, cinnamon, green tea, etc.), this section shows their researched medicinal properties that go beyond standard nutrition.

๐ŸŒฑ Example: Turmeric (Curcuma longa)

๐Ÿ”ฌ Key Compounds: Curcumin (diferuloylmethane, 2-5% by weight), turmerone, zingiberene โ€” these are bioactive compounds not measured by standard USDA nutrient analysis.

โšก Actions & Benefits: Potent anti-inflammatory, brain health, joint support, antioxidant

๐Ÿ“‹ Suggested dose: 500-2000mg/day

๐Ÿ“š Sources: Clickable PubMed links to actual research papers about this specific herb.

๐Ÿ’ก What are these compounds? Standard nutrition databases measure vitamins, minerals, macros. But many foods also contain bioactive compounds โ€” curcumin in turmeric, allicin in garlic, gingerol in ginger โ€” that have medicinal effects not captured by standard nutrient analysis. Our database of 164 medicinal herbs is sourced from German Commission E monographs, WHO herbal monographs, ESCOP, and peer-reviewed research.

๐Ÿ”ฌ Rare Bioactive Compounds Detected

This section highlights unusual or health-significant compounds that the USDA does measure but most nutrition apps completely ignore. Out of 477 nutrients in the USDA database, most apps show 6-15. We check all of them and highlight the rare ones.

Examples you might see:

๐Ÿ„ Betaine (amino compound) โ€” Liver protection, homocysteine reduction. Found in beets, spinach, quinoa.

๐Ÿฅ• Cryptoxanthin, beta (carotenoid) โ€” Vitamin A precursor, bone health, anti-inflammatory. Found in papaya, tangerines.

๐ŸŒป Tocopherol, gamma (tocopherol) โ€” Anti-inflammatory (superior to alpha-tocopherol). Found in walnuts, soybean oil.

๐Ÿ‡ Kaempferol (flavonol) โ€” Anti-cancer, cardiovascular protection. Found in kale, spinach, broccoli.

Each compound shows its amount in your food, its category (carotenoid, flavonoid, polyphenol, etc.), its health significance, and which foods are the richest sources. Free users see 5 compounds; Pro users see all detected.

๐ŸŒฟ Herbal Remedies for Your Symptoms

This section only appears when you select symptoms before running the calculator. It queries a database of 500+ herb-symptom mappings to find herbs most relevant to your specific health concerns.

Understanding the effectiveness dots

Each herb card shows 1 to 5 green dots in the top-right corner. These represent how well-matched the herb is to your selected symptoms:

Excellent โ€” Strongest evidence for your symptoms. Top recommendation.
Good โ€” Solid evidence. Worth considering.
Low โ€” Some traditional use or preliminary evidence.

The score combines two factors: relevance strength (how well-established the herb is for each symptom) and symptom coverage (how many of your selected symptoms the herb addresses). An herb that strongly treats 3 of your 4 symptoms will rank higher than one that weakly treats just 1.

Orange tags on each card show which of your selected symptoms that herb addresses. Free users see 3 recommendations; Pro users see all ranked results.

โš•๏ธ Medical disclaimer: Herbal information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies, especially if you are pregnant, nursing, taking medications, or have a medical condition. Some herbs interact with medications.

๐Ÿ“ˆ Nutrient Table & Risk Scores

The main results table shows each nutrient's intake versus your recommended daily intake (RDI), personalized to your age, gender, and diet type.

Understanding the columns

Nutrient โ€” The nutrient name (e.g. "Iron, Fe", "Vitamin D")

RDI โ€” Your Recommended Daily Intake, adjusted for your profile

Intake โ€” How much you consumed from the foods you entered

% RDI โ€” Your intake as a percentage of the recommendation

Risk % โ€” Deficiency risk score (0-100%). Higher = more concerning.

Status โ€” Color-coded summary of where you stand

Risk score color scale

0-20%
Adequate
20-40%
Monitor
40-60%
Low
60-80%
Deficient
80-100%
Critical

Risk scores factor in more than just your intake โ€” they also consider your symptoms (if selected), your diet type (vegans are at higher risk for B12), and known population-level deficiency prevalence. A nutrient might show 70% RDI intake but still have a 50% risk score if you're in a high-risk group.

๐Ÿ’ก 31 nutrients tracked with risk scoring: We score 31 key nutrients against your personalized RDI. But we also detect and display ALL nutrients found in your foods โ€” including the 477 that USDA tracks. Most nutrition apps show 6-15. We show everything.

๐Ÿฝ๏ธ Recipe Recommendations

Below the nutrient table, you'll see recipe suggestions specifically chosen to address your nutrient gaps. If you're low on Iron, you'll see iron-rich recipes. Low on Vitamin D? Recipes featuring salmon, eggs, or fortified foods.

Recipes come from multiple sources โ€” our database of 491,000+ recipes, plus external recipe APIs (Spoonacular, Edamam, TheMealDB) to ensure variety. Each recipe shows which deficient nutrient it targets and why it was recommended.

๐Ÿ“š Where Does This Data Come From?

Nutrient data

USDA FoodData Central โ€” 662,000+ foods with laboratory-analyzed nutrient values. This is the gold standard used by hospitals, researchers, and government agencies. SR Legacy and Foundation foods have the most complete nutrient profiles.

Packaged food data

USDA Branded Foods โ€” 574,000+ branded products with UPC codes and ingredient lists. Plus Open Food Facts โ€” 4 million+ products with Nutri-Score, NOVA classification, and E-number additive tagging contributed by a global community.

Herbal & medicinal data

164 medicinal herbs with compounds, benefits, and dosages sourced from German Commission E monographs, WHO Herbal Monographs, ESCOP (European Scientific Cooperative on Phytotherapy), and peer-reviewed research with PubMed-linked references.

Additive safety data

Based on EFSA (European Food Safety Authority) risk assessments, IARC (International Agency for Research on Cancer) classifications, FDA regulatory status, and international regulatory actions. 79 E-numbers classified + 33 hazardous ingredient entries with country-specific ban/restriction data.

PRAL acid/alkaline

Calculated using the Remer & Manz (1995) formula โ€” a peer-reviewed method that uses protein, phosphorus, potassium, magnesium, and calcium values to determine the acid or alkaline effect of food on the body.

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