One of the things that often gets overlooked, is that unless you're eating organic, the quality of carbs are often contaminated with chemicals and mixed with fillers and additives which effects the nutrients you derive from eating, as well as how your body breaks food down. For example, I'm really careful about the baked goods I get while eating out in the US, because they often make me brain fogged and sluggish feeling after eating them. But when I was on vacation on St. Marteen, an island in the Caribbean, I didn't have the same problems when eating out at restaurants because they never allowed Monsato on the island.

That being said, I agree that it's better to keep a low carb diet to stay healthier overall. One of the things that I found surprising while doing keto, was the huge quantities of food I was able to consume while still losing weight and gaining muscle. This really brought home the point that quality and the source of my foods is really impactful on my moods and physical well-being.