External references accessed on 29 April 2026 unless otherwise stated. Labels, formulations, and public information may change over time. Sources available on request. References to omega-3 as a permitted nutrition claim, and to authorised health claims relating to DHA and EPA, are based on the Great Britain nutrition and health claims framework, DHSC guidance on Regulation (EC) No 1924/2006, and the relevant authorised claim entries covering DHA and maintenance of normal brain function, DHA and maintenance of normal vision, and EPA and DHA and the normal function of the heart. References to oily fish as a key dietary source of long-chain omega-3, and to UK advice that most people should eat more fish including oily fish, are based on NHS guidance and SACN advice on fish consumption. References to DHA and EPA as the principal long-chain omega-3 fatty acids, and to the fact that conversion from plant ALA to EPA and DHA is very limited, are based on U.S. National Institutes of Health Office of Dietary Supplements omega-3 fact sheets. References to Tonic Kids Omega-specific composition and formulation, including 415 mg total omega-3 per serving, 250 mg DHA, 102 mg EPA, wild-caught sustainably sourced fish oil, no added sugar, no artificial sweeteners, no fishy aftertaste, and the stated 44% better absorption, are based on Tonic Health’s live Kids Omega public product and related omega explainer pages. Comparative or superiority claims such as “44% better absorption”, “8x more than most”, “optimal strength”, or any selected comparison-set wording should only be used where the underlying study, comparator set, methodology, and date-accessed substantiation are held on file. ASA/CAP guidance also requires marketers to hold documentary evidence that claims meet the conditions of use of the applicable register, and that general health claims be accompanied by a specific authorised health claim.