How the diets react
Diet Ratings
Typically 0-1g net carbs per tablespoon. High fat, minimal carbs. Ideal keto condiment. Verify no added sugars in specific brand.
Traditional mayonnaise contains eggs as a primary ingredient. Most commercial varieties are not vegan unless explicitly labeled as egg-free.
Mayonnaise made with paleo-approved oils (avocado, olive) and eggs is technically compliant, but most commercial versions use seed oils (soybean, canola). Homemade mayo with quality ingredients is acceptable; store-bought requires careful label inspection.
Strict paleo excludes all emulsified processed condiments regardless of ingredients. However, mainstream paleo (Sisson, Whole30) accepts homemade mayo or brands using avocado/olive oil as a legitimate condiment.
Commercial mayonnaise is highly processed, typically made with refined seed oils rather than extra virgin olive oil, and contains added sugars and emulsifiers. It contradicts the Mediterranean emphasis on whole, minimally processed foods.
Typically made from eggs (animal-derived) and oil. Quality depends on oil source: if made with animal fat (tallow/lard) or avocado oil, more acceptable; if made with seed oils (soybean, canola), problematic. Most commercial mayonnaise uses seed oils, making it questionable.
Strict carnivores avoid all mayonnaise due to seed oil content and processing. Some practitioners accept homemade mayo made with animal fats or high-quality oils, but this is not mainstream.
Compliant mayonnaise (made with eggs, oil, vinegar, salt) is technically allowed. However, most commercial brands contain added sugar or soy lecithin. Must verify ingredients carefully.
Some Whole30 practitioners avoid mayo entirely due to its processed nature and the difficulty in finding truly compliant versions, despite official guidelines allowing compliant mayo.
Monash University rates plain mayonnaise as low-FODMAP. Primarily oil and egg with minimal fermentable carbohydrates. Check labels for added garlic or onion in flavored varieties.
High in total fat and calories; most commercial versions contain soybean oil (acceptable) but saturated fat content varies. Sodium typically 90-200mg per tablespoon. Use sparingly as condiment.
Typically soybean oil-based (omega-6 heavy), but fat content is usable in small portions. Some Zone practitioners prefer avocado-based or olive oil mayo. Macro-neutral but inflammatory oil concern.
Dr. Sears prioritizes omega-3 and monounsaturated fats; standard mayo's omega-6 seed oil base conflicts with anti-inflammatory goals. Avocado-based mayo aligns better.
Typically made with inflammatory seed oils (soybean, canola) and high in omega-6 polyunsaturated fats. Excessive omega-6 promotes inflammation. Standard mayonnaise should be avoided.
High fat content (90+ calories per tbsp, mostly from oil) worsens nausea and bloating on GLP-1. Contains no protein or fiber. Small amounts as a condiment may be tolerated, but regular use is problematic. Some RDs recommend avoiding entirely; others allow 1 tsp as flavoring on lean proteins.
Some GLP-1 nutrition specialists allow mayo in very small amounts (1 tsp) as a flavor enhancer on otherwise lean meals, arguing the psychological benefit of taste satisfaction outweighs the fat load. Others recommend complete avoidance due to high fat density and lack of nutritional value.
Controversy Index
Score range: 2–9/10. Higher controversy = more disagreement between diets.