Sugar being a readily metabolized energy source is almost undoubtedly a cancer source because increase in energy results in increase in cellular production one way or another, which leads to higher risk of mutated cancerous cells, period. Hence the link of obesity to cancer as well.
The fact is that anything that increases the amount of you or the rate of you over time over the bare minimum needed for survival is an increased cancer risk... there are other causes like exposure to radiation that actually damage cells and so on as well.
Ultimately the question isn't if there's a link to cancer, it's how much something is increasing your risk of cancer relative to the alternatives. I suspect artificial sweeteners are in general for most less risk than consuming vast amounts of sugar, gaining lots of weight, becoming inactive, and increasing their cancer risk that way but who knows. Obviously if you ommit everything but consume the bare minimum sugar you need for survival you'll have a lower risk... good luck with that in modern society and diets
The fact is that anything that increases the amount of you or the rate of you over time over the bare minimum needed for survival is an increased cancer risk... there are other causes like exposure to radiation that actually damage cells and so on as well.
Ultimately the question isn't if there's a link to cancer, it's how much something is increasing your risk of cancer relative to the alternatives. I suspect artificial sweeteners are in general for most less risk than consuming vast amounts of sugar, gaining lots of weight, becoming inactive, and increasing their cancer risk that way but who knows. Obviously if you ommit everything but consume the bare minimum sugar you need for survival you'll have a lower risk... good luck with that in modern society and diets