Can I eat a potato after fasting? A complete guide
                                
                                
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                                    5 min read                                
                            
                                According to research on the glycemic index (GI), a potato’s GI can vary significantly depending on how it's prepared, a crucial factor to consider when you can eat a potato after fasting. While a baked Russet potato can cause a substantial blood sugar spike, other methods can make this starchy vegetable a suitable food for re-feeding.