How the diets react
Diet Ratings
High in carbohydrates with approximately 14g net carbs per 100g. Natural sugars make it incompatible with keto macros. Even small portions significantly impact daily carb budget.
Longan is a tropical fruit. Whole plant food with no animal products. Fully vegan-compliant.
Longan is an unprocessed tropical fruit rich in vitamin C, copper, and antioxidants. It was available to hunter-gatherers in tropical regions and is fully paleo-compliant.
Tropical fruit not native to Mediterranean region. While containing vitamin C and antioxidants, it lacks emphasis on local, seasonal Mediterranean fruits. Acceptable occasionally but not a core fruit choice.
Contemporary Mediterranean diet practitioners increasingly accept non-native fruits based on nutritional merit and global food availability, viewing longan as acceptable occasional fruit choice.
Longan is a tropical fruit, plant-derived and explicitly excluded from carnivore diet. Contains plant compounds, fiber, and sugars incompatible with carnivore principles.
Longan is a whole, unprocessed fruit that is explicitly compliant with Whole30. It is nutrient-dense and can be consumed freely as part of a balanced diet.
Longan is a tropical fruit with relatively low fructose and minimal polyol content. Monash testing is limited, but available data suggests it is low-FODMAP at standard fruit portions (approximately 10-12 fruits or 100g).
Monash University has limited specific testing on longan. Clinical FODMAP practitioners generally consider it low-FODMAP based on carbohydrate composition, but individual tolerance may vary. Standard fruit serving size is recommended.
Low-sodium fruit (<1mg per ounce), good vitamin C and copper content. Fits DASH fruit category. Moderate fiber (1-2g per ounce) and natural sugars (15g per ounce). Nutrient-dense tropical fruit.
High glycemic index (~70) with ~14g carbs per 100g and high sugar content. Tropical fruit with rapid glucose spike. Difficult to portion for Zone macros. Dr. Sears' guidance emphasizes avoiding high-glycemic tropical fruits.
Minimal dissent; Dr. Sears consistently categorizes high-GI tropical fruits as problematic for Zone. Some practitioners might allow tiny portions (3-4 fruits) but this conflicts with Zone anti-glycemic principles.
Tropical fruit rich in antioxidants, vitamin C, and polyphenols. Low glycemic impact. Contains copper and other minerals. Supports anti-inflammatory response through antioxidant mechanisms.
Longan is moderate in calories (60 per 100g) with moderate natural sugars (15g per 100g) and minimal fiber (1.5g per 100g). Provides vitamin C and copper but low protein. The small size and seed may promote portion control, but the sugar-to-fiber ratio is unfavorable for GLP-1 patients. Best consumed in small amounts with protein. Individual tolerance to fruit sugars varies.
Some GLP-1 RDs recommend limiting longans due to sugar content and low fiber; others view them as acceptable in very small portions given their low calorie density and micronutrient content. Tolerance depends on individual blood sugar sensitivity and GI tolerance to natural sugars.
Controversy Index
Score range: 1–10/10. Higher controversy = more disagreement between diets.