Quince vs. Guava — Health Impact and Nutrition Comparison

Vitamins and Minerals

Guava has richer vitamin and mineral profiles than quince. It contains 15 times more vitamin A and vitamin C than quince, and it is also significantly richer in all B-group vitamins.

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.

Quince

0

100 g 300 g 1 fruit without refuse - 92g

Guava

11

100 g 300 g 1 fruit, without refuse - 55g1 cup - 165g

Contains more Vitamin CVitamin C	+1422%
Contains more Vitamin AVitamin A	+1450%
Contains more Vitamin B1Vitamin B1	+235%
Contains more Vitamin B2Vitamin B2	+33.3%
Contains more Vitamin B3Vitamin B3	+442%
Contains more Vitamin B5Vitamin B5	+456.8%
Contains more Vitamin B6Vitamin B6	+175%
Contains more FolateFolate	+1533.3%

~equal in Vitamin D ~0µg

~equal in Vitamin B12 ~0µg

For their mineral content, guava is more affluent in copper, potassium, and zinc, whereas quince is higher in iron.

Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.

Quince

1

100 g 300 g 1 fruit without refuse - 92g

Guava

8

100 g 300 g 1 fruit, without refuse - 55g1 cup - 165g

Contains more IronIron

+169.2%

Contains more MagnesiumMagnesium	+175%
Contains more CalciumCalcium	+63.6%
Contains more PotassiumPotassium	+111.7%
Contains more CopperCopper	+76.9%
Contains more ZincZinc	+475%
Contains more PhosphorusPhosphorus	+135.3%
Contains less SodiumSodium	-50%

~equal in Selenium ~0.6µg

Micronutrients

Guava also contains more protein, polyunsaturated fats, and dietary fiber, while quince is higher in net carbs.

Both fruits are low in calories; however, guava contains slightly more calories.

Cardiovascular health

Section reviewed by cardiologist Astghik Grigoryan

Studies have shown that extracts from quince leaves at 320mg/kg doses have an antihypertensive effect similar to Captopril. Another study found that an aqueous-methanolic extract from quince seeds was most effective at 600mg/kg and prevented increased blood pressure (6).

Guava also has ACE inhibitory activity similar to antihypertensive drugs like Captopril and Perindopril and antioxidative properties, essential in reducing cardiovascular risk (7, 8).

The quince fruit is packed with quinic acid, shikimic derivatives, procyanidins, and flavonoids, which can help prevent atherosclerosis. Notably, the quince peel extract had the highest antioxidant activity (6).

According to this research, the extract obtained from quince leaves can regulate the levels of lipids in the blood, much like Atorvastatin. However, it did not show significant improvement in atherosclerosis caused by a high-fat diet. Therefore, reducing the intake of high-fat foods in your diet is recommended. 

Other studies also found that the aqueous extract of quince fruit and guava may significantly lower serum levels of TG (triglycerides) and LDL (“bad” cholesterol) while increasing the levels of HDL (“good” cholesterol) (6, 9).