I'm sure it's not sugar that is dangerous, but (the..but it’s not essential to use the article here, it just sounds nicer) amounts of it consumed. You can kill yourself with plain water if you somehow manage to drink 10 litres of it at once. As for sugar, I realized that almost every food contains it, so there's no point in adding to raw sugar into food. For example, I stopped drinking tea with sugar a while ago and discovered that green tea is much better without it. Moreover, all other food that taste (all = plural, so you need the plural form of the verb) sweet became much (many times) more sweet (don’t say more sweeter…either sweeter or more sweet) to me, so I just can't consume, say, many candies anymore because of this effect. Raw sugar dulls your taste of sweetness , so I highly recommend to stop consuming it. Even just for the sake of better taste, not health. Well done! You’re perfect today on your articles v no article needed! Food, sugar, water, tea are all uncountable. Well done!