There is no difference between refined or unrefined carbohydrates when it comes to your blood levels.

It comes down to digestion and metabolism.

Refined carbohydrates tend to digest faster and therefore spike your sugar levels faster, which can aid in raising your insulin resistance.. but eating a massive amount of unrefined carbs will cause diabetes too.

Your body also isn't necessarily trying to "flush out" the sugar, either. This theory runs contrary to the function of sugars and insulin, which is to deliver everything -- good and bad -- to your cells.

Further, how you use those carbohydrates matter, not that you consume them.

If you have a heavy workout and consumed refined carbohydrates just before you started, those carbohydrates will deliver fats and protein and calories to your muscles, which repairs them and makes them stronger (and ultimately bigger).

You can do the same thing by consuming slower digesting unrefined carbohydrates further from your workout to achieve the same thing. It's not the type of carbohydrate, but how you use it.

When you aren't working out, insulin is released to store those calories, fats and proteins into fat cells, making them larger.

You're not going to die any faster by having refined carbohydrates in moderation. We are all, under every circumstance, dying a slow death.

You prolong your life by becoming physically active, learning your limits and understanding how to use your biology in your favor.

You can downvote me all you like; learning moderation is important, as is understanding the effects of carbohydrates on our body and how they are an important part of how it functions.

Even on keto, you synthesize glucose from protein for your brain via gluconeogenesis.

Your ketones burn fat, but don't do as good of a job delivering to muscle cells as insulin does.

Refined carbohydrates can be a very useful part of your diet for obtaining and maintaining strength and muscle density because timing your carbs creates the biggest gains.