Beyond Sugar: A Holistic Review of Sweeteners

With rising rates of obesity, diabetes and cardiovascular disease, reducing added sugar has become a public health priority. This review maps the expanding universe of sweeteners—artificial, natural and plant-based—highlighting their potency, glycemic effects, technological properties and controversies. It categorizes synthetic options such as aspartame, sucralose, saccharin and advantame (up to 20,000 times sweeter than sugar) alongside natural polyols like xylitol, sorbitol and lactitol, and high-intensity plant-derived sweeteners such as stevia, monk fruit, thaumatin, miraculin and brazzein.

Artificial sweeteners provide intense sweetness without calories or significant glycemic impact, but differ in stability and aftertaste; some are heat-stable for baking, others suited only for cold products. Polyols offer a middle ground—lower calorie content and slower absorption, yet possible laxative effects if consumed in excess. Plant-based high-potency sweeteners deliver zero glycemic index and extremely high sweetening power, but challenges include scaling production (e.g., Reb M from stevia) and achieving clean taste profiles.

Beyond sweetness, the review examines how these compounds interact with T1R2–T1R3 taste receptors and influence satiety and metabolic responses. Regulatory bodies worldwide rigorously evaluate sweeteners, but public perception remains split between “natural equals safe” and “synthetic equals risky,” amplified by media controversies such as the IARC’s 2023 classification of aspartame as “possibly carcinogenic.” EFSA and WHO, however, continue to affirm safety at established acceptable daily intakes.

By distilling the science behind dozens of alternatives, the authors show how sugar reduction no longer means flavor loss. Thoughtful formulation using these diverse sweeteners can help manufacturers deliver indulgence with fewer health compromises and give consumers more credible choices in a crowded market.