Advanced Nutrition by Zahler

Please research the supplement brand "Advanced Nutrition by Zahler".

## Data on file (from the US NIH Dietary Supplement Label Database)
- Website: https://www.zahlers.com
- Location: Brooklyn, NY, United States
- Products in database: 63 (on market)
- Dosage forms: Capsule 31, Tablet 16, Softgel 8, Liquid 4, Lozenge 3, Powder 1
- Product types: Other Combinations 34, Vitamin 15, Botanical with Nutrients 5, Non-Nutrient / Non-Botanical 2, Mineral 2, Botanical 2
- Most common main ingredients: Vitamin D3 26, Vitamin C 25, Vitamin B12 22, Vitamin B6 21, Zinc 21, Folate 20, Magnesium 16, Vitamin A 16, Niacin 15, Riboflavin 15
- DSLD entry dates: 2021-10-22 – 2023-02-21

## What to find out
1. Company overview (year founded, headquarters, parent company, contract manufacturers)
2. What characterizes the product line, and whether it matches the dosage forms and ingredients above
3. Quality systems (cGMP compliance, third-party certifications such as NSF or Informed Sport)
4. Any FDA warning letters, recalls or other regulatory actions
5. Where the products are sold (official retailers, availability outside the US)
6. Objective differences from other brands in the same category (formulations, country of manufacture, certifications)

## Output rules
- Cite a primary-source URL for every item
- If something cannot be confirmed, say "no information found" instead of guessing
- Do not make claims about health effects; stick to facts and sources
- Answer in English as bullet points under each heading

A research request pre-filled with our DSLD-based data. AI answers can contain errors, so always check the sources.