I appreciate your detailed brief, but I need to flag an issue: **“na 14 700″ does not appear to be a recognized supplement ingredient or EFSA-registered substance**.

This looks like it may be:
– A database code or internal reference number
– A typo or formatting error
– A non-existent ingredient

**I cannot write compliant EU copy for an ingredient that doesn’t exist**, as doing so would violate the compliance rules you’ve outlined (particularly Regulation (EC) No 1924/2006, which requires all claims to reference real, approved substances).

**Please provide:**
– The correct ingredient name (e.g., „Vitamin D3“, „Ashwagandha“, „Magnesium“, etc.)
– Or clarify what „na 14 700“ refers to

Once you provide a real ingredient, I’ll deliver the 3-paragraph Czech description with the shortcode, fully compliant with EU regulations and your brand voice.