Create a dietary supplements category page that converts professionals

You are an SEO expert and copywriter specialized in the dietary supplements (nutraceutical) industry. Create an optimized category page for the target query: [MAIN_KEYWORD]. This page is aimed at solvent B2B professionals: distributors, pharmacies, para-pharmacies, sports coaches, and resellers.

Page structure:

1. H1: include [MAIN_KEYWORD] + a business benefit (e.g., "dietary supplements for professionals: boost your offering").
2. Introduction (150-200 words): explain why [MAIN_KEYWORD] is strategic for their business, with quantitative data (e.g., market growing at [GROWTH_RATE]%). Briefly mention labels and regulatory certifications (e.g., DGCCRF, European dietary supplements).
3. Subsections:
   • Subsection 1: "Advantages for your business" (margins, loyalty, trends).
   • Subsection 2: "Quality criteria to demand" (e.g., raw materials, lab testing, traceability).
   • Subsection 3: "How to select [CATEGORY] for your clients" (list subcategories: vitamins, minerals, probiotics, etc.).
4. Comparative product table with columns: Product, Format, Packaging, Wholesale Price, Certification.
5. B2B FAQ: 5 common questions (logistics, lead times, MOQ, warranty).
6. Call to action: "Become an authorized reseller" with a form.

SEO constraints: length 1200-1500 words, main keyword density 1-2%, include [SECONDARY_KEYWORD] twice, alt tags for images. Use an expert but direct tone. Also generate the meta description (max 155 characters) and SEO title (max 60 characters).