In May 2019 researchers from Canada and the USA published their review of the evidence to assess whether fruit juice consumption could lead to the same adverse effects on health as sugar- sweetened beverages. A high intake of free sugars is associated with an increased risk for metabolic diseases, such as alteration of the blood lipid levels, and it is known that natural fruit juices have a free sugar composition quite similar to that of sugar-sweetened beverages. Results showed that, despite the similarity of fruits juices to sugar-sweetened beverages in terms of free sugars content, it is currently unclear as to whether they can lead to the same metabolic consequences if consumed in equal dose. Important discrepancies between studies, such as type of fruit juice, dose, duration, study design, and measured outcomes, make it impossible to provide evidence-based public recommendations as to whether the consumption of fruit juices alters the blood lipid profile. Further research is urgently required before accurate public health guidelines can be produced on the variety and quantity of free sugars in our diet that would help to prevent the development of obesity and related health problems.
Pepin A et al. Are Fruit Juices Healthier Than Sugar-Sweetened Beverages? A Review. Nutrients. 2019 May 2;11(5). pii: E1006.