A standard sourdough loaf is made from two simple ingredients, flour and water – or three, if you add salt. So standard sourdough isn't keto, because standard, all-purpose flour is made from grain (usually wheat), meaning it's high-carb . Therefore, anyone following a strict ketogenic diet should avoid it.

Is any kind of bread allowed on keto diet?

Since carbs are present in many healthy, keto-friendly foods such as leafy, nonstarchy vegetables and low-sugar fruit, it's generally recommended to stay away from other grains and carb-heavy starches. Yes, this includes bread and all the beloved bread products.

Is sourdough bread good for weight loss?

Sourdough bread may have health benefits due to the fermentation process that manufacturers use to make it. Beneficial bacteria and low phytates make sourdough bread easy to digest, and they may also help with weight loss.