Summary
Uncover the Sneaky Hidden Sugars: Urgent Reform Needed for Clearer Labelling to Safeguard Oral Health addresses the critical public health issue of hidden and added sugars in processed foods and their detrimental impact on oral health, particularly dental caries. Dental caries, or tooth decay, remains the most common noncommunicable disease globally, affecting all age groups and disproportionately burdening disadvantaged populations. The consumption of dietary sugars—especially added sugars often concealed under various names on food labels—facilitates the growth of acid-producing bacteria in the mouth, leading to enamel demineralization and cavity formation. Despite reductions in caries prevalence among children in some regions, adults increasingly bear the burden of dental decay, underscoring the need for lifelong oral health strategies.
A major obstacle in reducing sugar intake is the pervasive presence of added sugars in everyday foods, including items not typically perceived as sweet, such as sauces, breads, and processed meals. Current food labeling regulations vary internationally and often lack clarity or consistency regarding the disclosure of added sugars. For example, while the United States Food and Drug Administration (FDA) requires separate labeling of added sugars on nutrition facts panels, the European Union (EU) only recently mandated total sugar disclosure without a clear distinction between natural and added sugars. This regulatory fragmentation complicates consumer awareness and impedes effective dietary choices to mitigate oral health risks.
Given the strong association between frequent added sugar consumption and increased risk of dental caries, there is an urgent call from public health experts and organizations for comprehensive reform of food labeling practices. Proposed changes include mandatory, standardized disclosure of added sugars distinct from naturally occurring sugars, clearer ingredient listings to reveal hidden sugars under multiple aliases, and harmonization of international labeling standards to facilitate consumer understanding and protect public health globally. Such reforms are essential not only to empower consumers but also to reduce the substantial oral health burden and associated socioeconomic costs linked to sugar-related diseases.
In addition to labeling improvements, multifaceted public health strategies—such as restricting marketing of high-sugar products, promoting healthier alternatives, reformulating foods to lower sugar content, and implementing fiscal policies like sugar taxes—are recommended to effectively reduce sugar consumption and safeguard oral health. The page highlights these interconnected challenges and solutions, emphasizing the critical need for urgent, coordinated action to expose hidden sugars and protect oral health worldwide.
Background
The consumption of dietary sugars, including both naturally occurring sugars and added sugars, plays a significant role in oral health, particularly in the development of dental caries. Dietary sugars comprise all monosaccharides (such as glucose, galactose, and fructose) and disaccharides (including sucrose, maltose, and lactose), with total sugars encompassing those naturally present in foods as well as those added during food processing. While a decline in dental caries has been observed in recent decades across various countries, the incidence of dental caries increases with age, and most caries now occur in adults, highlighting the importance of maintaining oral health throughout the life course.
Added sugars are sugars and syrups introduced to foods and beverages during preparation, processing, or consumption. Common examples include sucrose, glucose, fructose, dextrose, and high fructose corn syrup, as well as more “natural” sweeteners like maple syrup, agave nectar, and honey. These added sugars are prevalent in many processed foods such as sugar-sweetened beverages, baked goods, desserts, sweets, and even in products not typically perceived as sweet, such as ketchup, spaghetti sauce, granola, and premade soups. Hidden sugars, often disguised under less familiar names on ingredient lists, further complicate consumers’ ability to identify added sugars in their diet.
The pervasive presence of added sugars in processed and prepared foods poses a challenge for consumers aiming to reduce sugar intake to protect oral health. Breakfast cereals, ready-to-eat meals, breads, soups, tomato sauces, snacks, cured meats, and sugar-sweetened yogurts frequently contain added sugars, contributing to continuous exposure to fermentable carbohydrates that promote dental decay. High-intensity sweeteners, which provide sweetness without calories, are used as alternatives but do not count as added sugars and are found in products containing ingredients like stevia, saccharin, aspartame, sucralose, and sugar alcohols.
Efforts to safeguard oral health through dietary measures are challenged by the often unclear or inconsistent labelling of sugars on food packaging. The European Commission has introduced provisions requiring clearer presentation of key nutritional characteristics such as energy, fat, saturated fat, carbohydrate, sugars, protein, and salt, as well as standardising allergen information and minimum font sizes for mandatory information to improve consumer understanding. However, the need for urgent reform in labelling practices remains critical to help consumers identify and limit their intake of hidden and added sugars, thereby reducing the risk of dental caries and improving overall health outcomes.
Impact on Oral Health
Dental caries, commonly known as tooth decay, is the most prevalent noncommunicable disease globally and a leading cause of tooth loss, particularly in children and adolescents. It occurs when bacteria in the mouth metabolize dietary sugars to produce acids that demineralize and damage the enamel and dentine of teeth, leading to cavities. The acid is produced as a byproduct of bacteria within dental plaque, a sticky film that forms on teeth shortly after eating, especially when sugary foods or drinks are consumed.
Frequent consumption of natural and added sugars significantly increases the risk of developing dental caries. Sugars interact with oral bacteria to generate acid that erodes tooth enamel, with sticky and sugar-rich foods consumed between meals posing a particular threat. Children are especially vulnerable, as early and habitual exposure to sugars establishes a higher risk of decay, contributing to tooth decay being the leading cause of hospitalisation among UK children aged 5 to 9 years old.
Beyond individual health, dental caries impose a substantial public health burden. Nearly half of the global population is affected by tooth decay, with high incidence rates especially in middle-income countries where sugar consumption is elevated. Tooth decay often causes pain, infection, and can lead to tooth extraction, which impacts quality of life and can result in missed school or work days. Disadvantaged populations suffer disproportionately due to reduced access to preventive care and oral health services.
Hidden sugars in everyday foods exacerbate the problem by weakening enamel and fostering conditions conducive to cavities and gum disease. Despite the recognized connection between sugar intake and dental caries, current food labelling practices often obscure the presence of added sugars, limiting consumer awareness and complicating efforts to reduce sugar consumption. This highlights the urgent need for clearer labelling and public health interventions to mitigate the impact of hidden sugars on oral health.
Preventive strategies include reducing sugar intake, especially free and added sugars, improving oral hygiene, and increasing access to fluoride and patient-centred dental care. Dietary guidelines recommend limiting calories from added sugars to less than 10% of total daily intake to reduce the risk of dental and other health problems. Such measures are critical to addressing the widespread burden of dental caries and safeguarding oral health across populations.
Current Labelling Practices and Regulations
Food labeling regulations concerning sugars vary significantly between regions, with notable differences in both requirements and enforcement. In the European Union (EU), labeling of nutrition information, including energy, fats, carbohydrates, sugars, proteins, and salt, is mandated to be clear and standardized, though nutrition labels have only recently become compulsory and remain more flexible compared to those in the United States. The EU regulation requires manufacturers to disclose total sugars but does not currently mandate separation of added sugars on nutrition panels, unlike recent U.S. rules. Moreover, EU labels must declare when a product contains added sugars or sweeteners, and products bearing claims such as “no added sugars” must clarify if naturally occurring sugars are present, often with statements like “CONTAINS NATURALLY OCCURRING SUGARS”.
In contrast, the United States Food and Drug Administration (FDA) has implemented stricter requirements for labeling added sugars. Since the latest updates, the Nutrition Facts label includes a distinct line for added sugars alongside total sugars, helping consumers identify and limit intake of sugars added during processing. This change responds to health concerns related to high consumption of added sugars, which are linked to obesity, diabetes, and other diet-related diseases prevalent in the U.S. population. The FDA defines added sugars as sugars and syrups incorporated during food manufacturing, distinct from naturally occurring sugars found in fruits and dairy. These labeling rules aim to empower consumers to make informed dietary choices, and compliance is mandatory for foods imported into the United States.
Other countries, such as those in Australia and New Zealand, also require clear labeling of sugars on packaged foods, mandating specific naming of added sugars in the ingredients list to enhance transparency for consumers. In the UK, a voluntary front-of-package “traffic light” system was introduced, which differentiates between added and naturally occurring sugars, providing visual cues about sugar content. Products high in added sugars receive a red indicator, while those with mostly naturally occurring sugars receive an amber light accompanied by explanatory notes. However, the adoption of this system remains limited and not strongly promoted by current authorities.
Across jurisdictions, claims related to sugars on labels—such as “sugar-free,” “no sugar added,” or “low sugar”—have precise regulatory definitions to prevent consumer confusion. For example, “no added sugars” means no added mono- or disaccharides or other sweetening foods, while “low sugars” typically indicates sugar contents below defined thresholds (e.g., 5 g per 100 g for solids in the EU). Additionally, sweeteners, including high-intensity and polyol sweeteners, must be declared either by name or by their designated E number in the EU, with accompanying warnings when required (e.g., for aspartame).
Despite these regulatory frameworks, challenges remain in harmonizing international standards and providing consumers with clear, accessible information. The EU’s historically flexible labeling rules and the relatively recent enforcement of mandatory nutrition panels contrast with the more rigorous and detailed U.S. requirements, which reflect differing public health priorities and disease burdens. This disparity complicates international trade and efforts to address hidden sugars in processed foods effectively. Continued research and consumer feedback are essential to refine labeling approaches that balance cost, clarity, and health impact, with the goal of enabling better public understanding of sugar content to safeguard oral and overall health.
Need for Urgent Reform in Labelling
The current landscape of sugar labeling presents significant challenges that impede consumers’ ability to make informed dietary choices and safeguard their oral health. Although the nutrition facts label is intended to inform consumers about sugar content, it often fails to clearly distinguish between naturally occurring sugars and added sugars, leading to confusion and underestimation of sugar intake. This lack of clarity is especially problematic given that the majority of sugar consumed in diets—particularly in the United States—is added during food processing and packaging rather than naturally occurring in whole foods. Consequently, consumers frequently encounter “hidden sugars” in everyday products such as ketchup, spaghetti sauce, and granola, which may not be perceived as sources of added sugars.
Compounding this issue is the inconsistency in labeling regulations across different regions. For instance, while the U.S. Food and Drug Administration (FDA) mandates detailed nutrition labeling including the declaration of added sugars, the European Union (EU) has only recently moved toward making such labeling mandatory, with prior requirements being largely voluntary and more flexible. This regulatory divergence creates complications for international trade, as products compliant with EU labeling standards may be rejected by U.S. regulators due to unfamiliar or noncompliant ingredient notations such as E numbers. These discrepancies underscore the need for harmonized and stringent labeling standards globally to ensure that consumers everywhere receive accurate information.
The public health implications of inadequate labeling are profound. Frequent consumption of foods and beverages high in added sugars is strongly associated with increased risk of dental caries, especially among children, where tooth decay remains a leading cause of hospitalizations in some countries. This oral health burden disproportionately affects disadvantaged populations, who often have limited access to preventive care and education. Without clear labeling that enables consumers to identify and reduce added sugar intake, efforts to combat sugar-related health issues are undermined.
To address these challenges, policy recommendations emphasize comprehensive reforms including transparent sugar content labeling, restrictions on marketing of high-sugar foods, promotion of healthier alternatives such as water, reformulation of processed foods to reduce sugar levels, and financial incentives like taxation on sugary products to discourage consumption. Such measures require urgent implementation to empower consumers, protect oral health, and mitigate broader public health risks linked to excess sugar intake.
Proposed Changes and Recommendations for Labelling
Efforts to improve the clarity and transparency of sugar content on food labels have gained momentum globally, driven by concerns over public health and the rising prevalence of diet-related diseases. Various regulatory bodies and experts have proposed changes and recommendations aimed at enhancing consumer understanding and enabling healthier choices.
Inclusion of Added Sugars on Labels
One of the key recommendations is the mandatory disclosure of added sugars separately from naturally occurring sugars on nutrition labels. While the European Union currently requires total sugar content to be disclosed, it does not mandate the differentiation of added sugars, which has been shown to be important for consumer awareness. The UK’s voluntary front-of-package traffic light system, which distinguishes products high in added sugars with a red label and those with primarily natural sugars with an amber label and a disclosure, represents an attempt to address this gap. In the United States, the Institute of Medicine has recently recommended that the Food and Drug Administration (FDA) include added sugars in a new front-of-package labeling system, providing a strong rationale for revisiting existing regulations and updating labeling standards based on emerging scientific evidence.
Harmonization with International Standards
Both the European Commission and the FDA base their nutritional labeling requirements on the Codex Alimentarius international standards, facilitating some degree of harmonization across borders. However, discrepancies remain, such as the US not recognizing E numbers (codes for permitted food additives in the EU), which can prevent EU products from entering the US market without relabeling. Proposed reforms emphasize the need for clearer, standardized labeling formats that can bridge these differences and assist consumers worldwide in making informed decisions.
Enhancing Nutritional Information Presentation
The European Commission’s provisions include minimum font sizes for mandatory information and standardized presentation of allergens and key nutritional components, such as energy, fat, saturated fat, carbohydrates, sugars, protein, and salt. It is suggested that future labeling should provide clearer information on these nutritional characteristics, including sugar, to better reflect their health implications. Additionally, consumer research is recommended to determine how increased sugar disclosures can address FDA concerns and whether establishing daily reference values for total and added sugars would be practical and beneficial.
Addressing the Costs and Practicalities of Labeling
While increased sugar labeling could incur additional costs for manufacturers and regulatory agencies, previous evaluations by the FDA and USDA Economic Research Service have found that the benefits of mandatory nutrition labeling outweigh these costs, justifying further disclosures about sugar content. The FDA’s rulemaking process includes opportunities for public comment and stakeholder input, which can help balance consumer needs with industry feasibility.
Indicating Presence of Sweeteners and Alternative Names for Sugars
Regulations also emphasize the importance of identifying sweeteners on food and drink labels, either by their specific names or their E numbers in the EU. Given the wide range of sugar aliases found in ingredient lists, clear and comprehensive labeling is crucial to prevent consumer confusion and hidden sugar intake. This includes awareness of alternative sweeteners that may affect health differently from traditional sugars.
Broader Policy Recommendations Complementing Labeling
Beyond labeling reforms, comprehensive strategies are recommended to reduce sugar consumption. These include restricting marketing of high-sugar products, improving the availability of healthier alternatives like water in public and school environments, reformulating processed foods to lower sugar content, and implementing fiscal measures such as taxes on sugary products. Such multifaceted approaches recognize that labeling alone may not suffice without supportive environmental and policy changes.
Case Studies and Examples
Dental caries remains a significant public health issue despite some decline in prevalence over recent decades. In the United Kingdom, it is the second most common health problem after the common cold, with approximately one in three adults and nearly one in four children affected by tooth decay. Sugars in foods and beverages play a central role in
Advocacy and Stakeholder Perspectives
Efforts to improve sugar labeling and reduce sugar consumption have garnered significant attention from a variety of stakeholders, including public health organizations, government agencies, industry groups, and consumer advocates. These groups emphasize the importance of transparent, standardized labeling systems to help consumers make informed dietary choices and protect oral health.
Public health advocates stress the need for clear information on added sugars in food products, highlighting the role of sugar consumption in dental caries and other noncommunicable diseases. The World Health Organization (WHO) and other health bodies have called for policies that include taxation of sugar-sweetened beverages, restrictions on marketing sugary foods—especially to children—and improving access to safe drinking water to reduce sugar intake and its associated health burdens. Governments worldwide have implemented various measures such as sugar taxes, voluntary reformulation pledges, and limiting sugary food availability in schools to create healthier food environments.
Regulatory agencies have also been engaged in reassessing labeling standards. For instance, the U.S. Institute of Medicine (IOM) recommended that the Food and Drug Administration (FDA) include added sugar content in a standardized front-of-package labeling system to better inform consumers and encourage healthier choices. This recommendation aligns with evolving dietary guidelines that emphasize limiting added sugar intake. Meanwhile, in the European Union, nutrition labeling regulations have been gradually evolving toward mandatory disclosure, although discrepancies between EU and U.S. labeling requirements—such as the recognition of food additive codes (E numbers)—pose challenges for international trade and consistent consumer information.
Industry perspectives often focus on compliance and responsibility aspects, stressing that manufacturers must ensure their products and labeling meet applicable laws and regulations in each market. Companies are legally obligated to verify the safety and regulatory status of sweeteners used in their products, and to list these ingredients transparently to consumers. However, some stakeholders have noted that labeling requirements remain flexible in certain jurisdictions, which may contribute to inconsistent information availability and consumer confusion.
Consumer research has been suggested as a vital tool to assess how additional labeling disclosures might influence purchasing behavior and whether they effectively address regulatory concerns. While increasing transparency can raise costs, public health benefits are considered to outweigh these factors, with mandatory nutrition labeling having been evaluated positively in terms of cost-benefit in prior regulatory frameworks.
The content is provided by Jordan Fields, Lifelong Health Tips
