One a day
by Bayer
Open Food Facts label for barcode 0016500558170 · Bayer. Screening numbers and flags live in the verdict band below. This hero only situates the source record.
The verdict
One a day by Bayer scores 100/100 in PlainFoodSafe's ingredient screening. We compared its 29 labeled ingredients with FDA SAFFA regulatory records and CSPI Chemical Cuisine ratings; 0 ingredients are flagged for caution. The 29-component label is layered, beginning with Omega-3 Fish Oil, Calcium Carbonate, Gelatin. Start with any flagged rows, then check the nutrition grade and serving size instead of treating one roll-up score as the whole decision. This is not a recall, allergy, medical, or dietary-safety determination.
- 100/100
- Safe safety score
- 0
- None flagged · of 29 analyzed
- Group 4
- Ultra-processed
- 0016500558170
- Barcode (UPC/EAN)
Computed directly from OpenFoodFacts ingredient data cross-referenced with FDA SAFFA and CSPI Chemical Cuisine ratings. See our methodology for the scoring formula.
Composite profile score
One verdict from three independent sources
70/100
Grade B
Ingredient Safety
100/100
FDA/CSPI flagged-ingredient screening
Processing Level
NOVA 4
Ultra-processed foods
Nutrition Grade
N/A
Nutri-Score front-of-pack nutrition grade
Weighted 50% ingredient safety / 25% processing level / 25% nutrition grade. A dimension with no data for this product (common: source coverage is partial) is dropped and its weight redistributes across the remaining dimensions, so missing data never silently lowers the score. See the full benchmark table.
00558170 · Open Food Facts · July 2026
One a day label screening desk
14 of 29 parsed ingredients carry FDA SAFFA or CSPI coverage (lead: Calcium Ascorbate). Source sheet 00558170 · Open Food Facts · July 2026. The screening score and flag counts are in the verdict band above. This desk is the provenance stamp, not a second scorecard. Methodology · Read with nearest score peer: one day women · Nearest score peer is one day women at the same screening score.
Screening model notes
How Nutri-Score, NOVA, and list length read this record
Within the four-tier shelf-label framework this site publishes, the composite for this product falls in the highest band. That band is defined by a threshold on the derived score alone: it is where labels land once components carrying caution-or-worse registry ratings contribute little or nothing to the deduction. The band is a summary of what the screened registries return for the components that were parsed, so it inherits their coverage gaps — a component absent from both registries neither raises nor lowers the figure. The threshold and the weighting behind it are set out on the methodology page.
No Nutri-Score grade is present for this record in the OpenFoodFacts snapshot this page is built from. The nutritional dimension is absent rather than assessed and withheld: the grade depends on a complete declared nutrition panel, and community-contributed records vary in how much of that panel they carry. Nothing about the missing grade implies anything either way about the panel itself. The screen below covers additive ratings only and does not depend on the nutrition figures.
This label parsed into a long component list. Where many entries are screened at once, the composite tends to reflect the overall mix of registry ratings returned rather than the rating of any one entry. Longer declarations also carry more sub-listed and compound entries, where a parenthetical group is resolved into its parts, so the parsed count can exceed what a reader counts on the packaging.
Cross-brand screening score neighbourhood
Ingredient-list length vs every product we publish
One a day lists 29 ingredients on its label
29 85th percentile a longer ingredient list than 85% of the 359,392 products we track
Each bar is a band; taller bars hold more products. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Distribution as text
- 0–2
- 6,050 products (2%)
- 2–4
- 24,522 products (7%)
- 4–6
- 31,054 products (9%)
- 6–8
- 30,981 products (9%)
- 8–10
- 31,618 products (9%)
- 10–12
- 29,943 products (8%)
- 12–14
- 28,403 products (8%)
- 14–16
- 27,417 products (8%)
- 16–18
- 24,508 products (7%)
- 18–20
- 19,062 products (5%)
- 20–22
- 14,679 products (4%)
- 22–24
- 12,238 products (3%)
- 24–26
- 10,830 products (3%)
- 26–28
- 9,344 products (3%)
- 28–30
- 7,955 products (2%)
- 30–32
- 6,753 products (2%)
- 32–34
- 5,918 products (2%)
- 34–36
- 5,282 products (1%)
- 36–38
- 4,531 products (1%)
- 38–40
- 4,063 products (1%)
- 40 and above
- 24,241 products (7%)
Source Open Food Facts, product label ingredient lists · July 2026
Ingredient-list length is a descriptive property of the label, not a safety rating. A longer list is not automatically worse and a shorter one is not automatically better; the count is shown so the label can be placed against a comparable population. No category with enough published products was available for this record, so the comparison runs against the whole published catalogue.
Ingredient Safety Analysis
Full Ingredient List
Omega-3 Fish Oil, Calcium Carbonate, Gelatin, Glycerin, Calcium Ascorbate, Yellow Beeswax, Magnesium Oxide, Beta-Carotene, Biotin, Carbonyl Iron, Color (Annatto Extract [seed]), Cupric Oxide, Cyanocobalamin, d-Alpha-Tocopherol, D-Calcium Pantothenate, Folic Acid, Niacinamide, Potassium Iodide, Purified Water, Pyridoxine Hydrochloride, Retinyl Palmitate, Riboflavin, Soy Lecithin, Thiamine Mononitrate, Vitamin D3 (Cholecalciferol), Zinc Oxide
Other products containing Cupric Oxide
Cupric Oxide is the least common ingredient on this label, appearing in 38 products across the catalog. See its safety profile.
More from Bayer
High-score cross-brand comparables for One a day
Neighbours outside Bayer with screening scores in the same high band as One a day (100/100 here). The 5 same-brand links above stay within Bayer; these peers cross brands.
Same high-band screening score
Nearest cross-brand products by screening score (100/100 here, no caution flags on the parsed list).
Long-label peers (21+ ingredients)
Nearest cross-brand labels by linked ingredient count (29 on 0016500558170).
Read the longer label in layers
Read the longer label in layers
One a day has a longer ingredient list than 85% of its published comparison set. Use the ingredient table before relying on its single screening score.
- Open Calcium Ascorbate first, then work through the remaining 29 parsed entries. Inspect ingredients
- Compare this longer label with a cross-brand product of similar list depth. Compare label depth
- Use the methodology to separate a derived screening score from dietary or medical advice. Read the boundary
This page describes published ingredient-list and source coverage. It is not dietary or medical advice.
Barcode 0016500558170: product data from Open Food Facts (July 2026). Screening from FDA SAFFA and CSPI Chemical Cuisine where attached. Figures are computed from those sources, not editor-typed. Methodology. Reference only, not dietary or medical advice.