Are Avocados Allowed on the Ornish Diet? Understanding the Low-Fat Rules
                                
                                
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                                    4 min read                                
                            
                                The Ornish diet, known for its ultra-low fat intake of less than 10% of total calories, strictly limits or excludes high-fat foods to promote heart health reversal. This strict principle often leads to questions about nutrient-dense, high-fat foods like avocados and whether they fit into the plan.