Dr Fung plan book very good.
But hard to comply with if you have a lifetime of different dietary habits.
Brother don't we know it. Never eat a potato or a slice of bread, even KFC is off limits. In fact if you enjoy it don't eat it. well it is almost that hard, but it is doable. There are some excellent Keto cooks on YouTube. Some are dedicated to treating diabetes others seem geared toward weight loss, but Keto does both well.