Publishing Principles

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At Protein & Calories, we believe in transparency and accountability. This page is designed to provide you with a clear understanding of how we gather and present our data, and the standards we uphold in our content. Below, you’ll find detailed insights into our Research Process and Editorial Guidelines, ensuring that you can trust the reliability and integrity of the information on this website.

Research Process for Product Nutritional Comparisons

At Protein & Calories, our mission is to provide you with detailed comparisons of calorie and protein content in food products available in the UK. We understand the importance of making informed food choices based on reliable data. Here’s how we ensure our comparisons are thorough and objective:

Selection of Supermarkets and Sources

  • We focus on the most popular supermarket chains in the UK as ranked by YouGov, excluding Lidl and The Co-Operative Food due to online inventory and access limitations. This approach includes household names like Aldi, M&S, Sainsbury’s, Tesco, Iceland, Morrisons, ASDA, and Waitrose. Additionally, we consider products available on Amazon, bringing our total source count to 9.
  • Our research begins with the most popular supermarket as per the current YouGov rankings at the time of research, we then work down the rankings in order of popularity. This method ensures that we cover the most widely available products first.
  • In the “found via” column of the tables, we put the first supermarket that we found the item at. So if something is available at Tesco and ASDA, we will add the link to the product page on Tesco as the source in the main comparison table, as Tesco is more popular so we would have found it there first.

Product Identification and Data Collection

  • Each new product we discover is added to our list. For non-store brand items found in multiple chains, we cite the supermarket where we first found it, preventing our data from becoming overly repetitive.
  • The nutritional information of each product is primarily sourced from the supermarket’s own product page. If the nutritional details are missing or incomplete, we refer to the manufacturer’s website or other stockists for complete information.
  • We maintain a strict policy of not estimating or guessing macros. In cases where exact nutritional information for a product is not available online and cannot be confirmed by contacting the manufacturer, we exclude that product from our comparison.

Data Analysis and Presentation

  • The data is meticulously compiled into our comparison tables, where we apply basic formulas to derive unique and insightful metrics like protein per 100 calories and calories per 10g protein. These custom metrics are specifically designed to support diet optimization, offering a distinct perspective for balancing protein intake and caloric goals.
  • Our top picks for each metric are highlighted to assist readers in finding products that best match their macro goals. This process is completely objective, based solely on the nutritional information. We do not factor in subjective elements like taste, nor do we consider other macros such as carbs, sugars, or fibre.

Our commitment is to provide you with clear, factual, and unbiased nutritional comparisons to help guide your dietary choices. We believe that informed decisions start with accurate information, and our rigorous research process is dedicated to that principle.

Editorial Guidelines

At Protein & Calories, our commitment to integrity, transparency, and accuracy guides every piece of content we create. These editorial guidelines reflect our dedication to providing our readers with trustworthy and reliable information.

Accuracy and Reliability

  • Fact-Checking: All information, particularly scientific and health-related claims, will be rigorously fact-checked and referenced to reliable sources. We strive to ensure that every piece of data on our site is accurate and up-to-date.
  • Expert Verification: In instances where our content delves into areas of health or nutrition science, we will consult and reference certified experts to verify the information. This approach helps us maintain the highest standards of accuracy and reliability.

Objectivity and Unbiased Reporting

  • Objective Analysis: Our content focuses on presenting objective, data-driven information. We avoid subjective interpretations and ensure that our conclusions are strictly based on the facts presented.
  • No Unverified Claims: We do not publish unverified health claims or advice. Any recommendations or conclusions are drawn from the data and are not influenced by external pressures or biases.

Transparency and Clarity

  • Clear Sourcing: Sources for all information will be clearly cited, allowing readers to see where our data comes from and verify it if they wish.
  • Reader-Centric Approach: We prioritize the needs and interests of our readers, presenting information in a clear, understandable format. We avoid technical jargon where possible and aim for clarity in all our content.

Continuous Improvement

  • Regular Updates: We are committed to regularly reviewing and updating our content to ensure it remains relevant and accurate.
  • Feedback Responsive: Reader feedback is invaluable to us, and we are always open to suggestions and corrections. This feedback loop allows us to continually improve and refine our content.

These guidelines underpin our dedication to creating high-quality, informative content. At Protein & Calories, we believe in empowering our readers with the best information to make informed decisions about their diet and health.