Editorial Standards.
Marlin Journal operates under a set of editorial principles that govern how articles are selected, sourced, edited, and published. This page describes those principles in full.
How content is produced
Marlin Journal operates under the following editorial principles: articles are reviewed by at least one second editor before publication, sources are cited where appropriate, corrections are noted publicly, and writers disclose any commercial relationships that could influence their selection of subject matter.
These principles are not aspirational. They are operational requirements. Every article published in Marlin Journal, regardless of its contributor's background or the complexity of its subject matter, passes through the same editorial pipeline before it reaches readers.
Topic Selection
Article topics are identified based on two criteria: reader relevance to the publication's subject matter (diet, nutrition, healthy eating habits, and everyday food practice) and availability of published nutritional research to support the content. Topics that cannot be grounded in published research, or that would require the use of vocabulary outside the scope of editorial wellness writing, are declined at this stage.
Research Sourcing
Contributors are required to identify the published nutritional research that underlies their content. Primary sources include peer-reviewed journals (such as The American Journal of Specialist Nutrition, The British Journal of Nutrition, and Nutrients), published dietary guidelines from the UK government (Eatwell Guide, NDNS data), and secondary reporting from credible nutrition journalism outlets. Wikipedia and commercial supplement or product websites are not accepted as sources.
First Draft and Editorial Review
The contributor submits a first draft. The contributing editor reviews for: accuracy of claims relative to the cited research; appropriate qualification of findings (distinguishing between well-established consensus and emerging or contested evidence); compliance with the publication's vocabulary standards; and overall editorial quality — structure, clarity, and reader relevance.
Second Review
Following first-round edits, the revised article is reviewed by a second reader — either the guest contributor (if the article was written by the primary editor) or the primary editor (if the article was written by a guest contributor). This second review focuses specifically on factual accuracy, source alignment, and vocabulary compliance. No article is published following only a single editorial review.
Disclosure and Commercial Independence Review
Before publication, the contributing editor confirms that the author has disclosed any commercial relationships relevant to the article's subject matter. Articles where undisclosed commercial relationships are identified after publication are either corrected with a note or withdrawn, depending on the nature of the relationship and its potential influence on the content.
Publication and Corrections Policy
Following successful completion of both editorial reviews and the disclosure check, the article is prepared for publication. Corrections identified after publication are addressed in a post-publication note attached to the article, identifying the error, the correct information, and the date of correction. Corrections are not made silently. Marlin Journal does not delete published content without explanation.
Evidence sourcing in detail
Content published by Marlin Journal is selected based on published nutritional research and undergoes independent batch verification for quality and labelling accuracy. The publication distinguishes between three tiers of evidential strength in its writing.
The first tier covers established consensus: dietary patterns and nutritional findings that are consistently replicated across multiple large-scale peer-reviewed studies and reflected in the published guidelines of major health authorities (NHS, SACN, Public Health England). Claims at this tier are presented as established.
The second tier covers emerging findings: research from credible sources that has not yet reached the threshold of consensus or guideline adoption, but which is published in peer-reviewed journals and represents a legitimate area of active investigation. Claims at this tier are explicitly qualified — "early research suggests", "a growing body of work indicates" — and never presented as settled.
The third tier covers contested or preliminary findings: single-study results, non-peer-reviewed sources, or research with significant methodological limitations. Claims at this tier are either excluded or presented with explicit caution and a note identifying the limitation.
Every factual claim in a published article — every figure, every research citation, every description of a dietary pattern or nutritional mechanism — is traced back to its primary source by the reviewing editor. Claims that cannot be traced to a primary source are removed or rewritten.
Nutritional data — fibre content, macronutrient values, micronutrient concentrations — is sourced from the UK government's nutrient composition databases (McCance and Widdowson's Composition of Foods) or equivalent peer-reviewed nutritional databases. Commercial product labelling is not used as a nutritional data source.
Where the publication references dietary guidelines — recommended daily intakes, portion size standards, population-level dietary targets — the source is identified as a named government, public health, or specialist advisory body, not as generic "experts". The Eatwell Guide, SACN reports, and NHS nutritional guidance are the primary reference frameworks for UK-relevant dietary information.
What this publication does not cover
Marlin Journal's editorial scope is intentionally bounded. The publication covers diet and nutrition as they relate to everyday food choices, meal planning, and healthy eating habits. It does not cover supplementation beyond whole-food sources; it does not address the management of specific conditions; it does not evaluate or recommend specific commercial products; and it does not publish content that requires the language of professional wellness guidance to be accurate.
These scope limitations are not an editorial failure but a deliberate editorial choice. Writing at the intersection of nutrition research and general readership is most accurate and most useful when it remains within the boundaries of what the evidence clearly supports and what editorial writers — as distinct from qualified nutrition professionals — are positioned to address.
We recommend speaking with a qualified wellness or nutrition professional before introducing any new habit or routine to your daily life, particularly if you have specific dietary requirements.
Readers who identify errors of fact, misrepresentation of cited research, or concerns about commercial independence in published articles are encouraged to contact the editorial team directly. All credible correction requests are taken seriously and responded to within five working days.
Correction requests should include: the specific claim identified as incorrect, the article in which it appears, and, where possible, the source supporting the correct information. Send all editorial correspondence to the address listed on the Contact page.