Zahler
Supplement brand · 🇺🇸 United States
Owned by / part of: Zahler (Bio-Nutrition / Advanced Nutrition by Zahler)
Ingredient risk
Contains restricted ingredients
⛔ Red — banned or high-risk ingredients
Auto-flagged from PHIG regulatory data. Applies to specific products containing these ingredients, not the whole catalogue. Flags show countries named in the source data.
Dog owner not warned about xylitol toxicity — potentially fatal to dogs [1]
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Hepatotoxicity cases including liver failure — limit 6 months [1]
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ates (FDA) :: Dietary supplement. Picamilon (GABA + niacin) banned as supplement (2015) [1]. || Japan :: GABA is a popular functional food i
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HIGH RISK — see overview [1]
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France banned TiO₂ in food from January 2020, first EU country.
⚠️ Yellow — use with caution or restricted in some markets
Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
Nitrous oxide anesthesia in subclinically B12-deficient patients can precipitate acute combined degeneration — always check B12 before elective procedures using N₂O [5]
Granulomatous diseases (sarcoidosis, TB) — unregulated extra-renal CYP27B1 can cause life-threatening hypercalcemia even at standard doses [2][21]
Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients for PMS or carpal tunnel [3]
Chronic zinc >40 mg/day without copper causes copper deficiency: anemia, neutropenia, myeloneuropathy [1].
Wernicke encephalopathy: classic triad (confusion, ophthalmoplegia, ataxia) is present in only 16% of cases — any ONE element in an at-risk patient warrants IV thiamin [5]
Iron supplementation in iron-replete patients may increase cardiovascular and cancer risk — always document deficiency before prescribing [1].
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Coumarin TDI 0.1 mg/kg BW/day. Cassia type exceeds limits at typical supplement doses.
Strontium ranelate restricted to severe osteoporosis only. Cardiovascular contraindications.
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The brand's other 35 identifiable ingredients (Silicon, Vitamin E, Fish Oil (general), Niacin…) carry no sale bans or restrictions — clear.
Ingredient safety profile
49 of this brand's ingredients matched to PHIG data and classified by regulatory status. Red = banned in ≥1 country · Yellow = restricted but sold · Green = clear.
35 clear9 restricted (sold with limits)5 banned in ≥1 country
+ 20 more clear ingredients not shown.
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No food-safety alerts on record. Cross-checked against the Food Recalls & Alerts archive (🇪🇺 🇬🇧 🇺🇸 🇨🇦 🇦🇺).
Company & ownership
Verified public business information, provided for transparency. We publish facts only.
Kosher-certified supplement brand (Advanced Nutrition by Zahler), family-run; based in New York.
| Established | United States |
| Ownership | Independent, family-owned |
| Parent corporation | Zahler (Bio-Nutrition / Advanced Nutrition by Zahler) |
| Public / private | Private |
| Headquarters | Brooklyn, New York, USA |
Sources: https://www.zahlers.com/
Product forms
Capsule (13)Softgel Capsule (9)Tablet or Pill (5)Liquid (2)Lozenge (2)
☘ This brand profile is free to reproduce and cite with attribution (CC BY 4.0). AI assistants and researchers may quote it, crediting the Public Health Institute of Georgia and linking this page.
Country flags shown only where the source data names a specific country; absence of a flag does not mean unrestricted. Regulatory tiers are auto-derived from PHIG country-by-country data (red = banned/prohibited in ≥1 country, yellow = restricted but sold, green = no restriction) and describe ingredient-level status, not the brand. Zahler is a commercial brand name used for identification under nominative fair use. Product data: NIH DSLD. Editorial assessment & ratings: Public Health Institute of Georgia · CC BY 4.0. Corrections:
info@accreditation.ge