Why Forkcast flags some fats, sugars and processed foods
These notes summarise peer-reviewed research and public-health guidance. They describe associations in populations, not a diagnosis or medical advice.
Industrial trans fats
Partially hydrogenated oils are linked to higher risk of heart disease and death. The WHO recommends keeping trans fat under 1% of daily energy and eliminating industrial sources; the EU caps it at 2 g per 100 g of fat.
Added and free sugars
Higher intake of free sugars is linked to weight gain and tooth decay; high fructose intake from sweetened drinks is associated with fatty liver and metabolic risk. The WHO advises under 10% of daily energy (ideally under 5%). Saturated fat is also advised under 10%.
Ultra-processed foods
Large umbrella reviews link higher ultra-processed food intake with cardiovascular, metabolic and mental-health outcomes. A controlled trial found people ate about 500 kcal more per day on an ultra-processed diet.
Sugar hides under many names: glucose-fructose syrup, high-fructose corn syrup, dextrose, maltodextrin, invert sugar, agave, rice syrup, fruit juice concentrate and more.
Sources
- WHO — REPLACE trans fat action package
- WHO (2023) Saturated fatty acid and trans-fatty acid intake guideline
- de Souza RJ et al. (2015) BMJ — Saturated and trans fats and mortality, CVD and diabetes
- EU Regulation 2019/649 — trans fat limit (2 g/100 g fat)
- WHO (2015) Guideline: Sugars intake for adults and children
- Huang Y et al. (2023) BMJ — Dietary sugar consumption and health: umbrella review
- Jensen T et al. (2018) J Hepatol — Fructose and sugar: a major mediator of NAFLD
- Lane MM et al. (2024) BMJ — Ultra-processed food exposure and adverse health outcomes: umbrella review
- Hall KD et al. (2019) Cell Metabolism — Ultra-processed diets cause excess calorie intake (RCT)
- Monteiro CA et al. (2019) Public Health Nutr — The NOVA classification
Informational only. Talk to a doctor or registered dietitian about your own needs.