"That's because white bread is a processed food with low-quality carbs and can contain added sugar. Eating white bread can cause large blood sugar spikes, which are not good for your health."
"For the remaining 45%, it’s OK to enjoy white bread in moderation — around 2-3 times per week — but not daily, and large quantities may have a negative impact. "
https://joinzoe.com/learn/is-white-bread-good-for-you