How to prepare for Longevity Kinder

The provided knowledge sources contain no specific information about preparing for the 'Longevity Kinder' test. This term does not appear in any product descriptions or FAQs. Therefore, I can only offer general, product-agnostic advice that applies to many MyBody-X tests: blood draws should typically be done fasting (8–12 hours without food), and supplements like biotin should be avoided before testing as they can interfere with measurements. If the test involves saliva samples, oral hygiene guidelines should be followed. These recommendations are not evidence-based for 'Longevity Kinder' and do not replace product-specific instructions. I recommend reading the included manual or contacting customer support. The evidence level is unclear because the test is not described in the context.