Guava is a super-fruits with a low-calorie profile with high dietary fiber, rich in antioxidants, and vitamins.
Guava fruit is a berry, which has fleshy pericarp and many small seeds.
As peoples are becoming more health conscious, demands for natural and fresh-foods like guava have increased interest.
Of the South American countries, Brazil, Colombia, Mexico, and Venezuela produce significant quantities of guava.
The fruits vary in size, shape and flavour depending on the variety.
Its seeds and leaves possess medicinal value and are traditionally used to treat many human ailments.
Guava is a tropical fruit, widely consumed fresh and also processed.
Processed products include beverages, syrup, ice cream, jams, jellies, cheese, coffee, juice, wine, and dehydrated and canned products
It is rich in ascorbic acid (vitamin C), a fair amount of vitamin A (beta-carotene), vitamin B such as thiamin (B1), riboflavin (B2), niacin and pantothenic acid are also found in the fruit.
Significant guava health benefits are supplying a fair amount of phosphorous, calcium, iron, potassium and sodium.
Guava health benefits: A Brief Introduction
Guava, as in many other fruits and vegetables, is also rich in antioxidants that help to reduce the incidence of degenerative diseases such as arthritis, arteriosclerosis, cancer, heart disease, inflammation and brain dysfunction.
Besides, antioxidants were reported to retard ageing, besides preventing or delaying oxidative damage of lipids, proteins and nucleic acids caused by reactive oxygen species.
They scavenge radicals by inhibiting initiation and breaking of chain reaction, suppressing formation of free radicals by binding to the metal ions.
Guava Health Benefits – Dietary Fiber
Guava has about 1.5% protein, 4.2-11.1 total sugars, 2.0-7.2% crude fiber, 0.4-0.7% fat, and 0.5-1.0% ash.
Moreover, pulp and peel fractions have a high content of dietary fiber (48.55-49.42%) and extractable polyphenols (2.62-7.79%).
Total Dietary Fiber content in the range 48.00-49.00 g/100 g of dry matter, and therefore it is the first consideration as an antioxidant dietary fiber.
Guava Health Benefits as Antioxidant Agent
A study polyphenol compounds antioxidant activity show a remarkable antioxidant capacity, and this activity correlates with total phenolic content.
The other antioxidants present in guava are ascorbic acid and carotenoids. But these compounds have less antioxidant potential in comparison with polyphenols.
Remarkable guava health benefits are the best source of natural antioxidants.
Peel and pulp could also be used to obtain antioxidant dietary fiber (AODF).
AODF is a single natural product the properties of dietary fiber and antioxidant compounds.
Moreover, guava is a food rich in dietary fiber with associated natural anti-oxidant components and a material suitable for AODF production.
The function of primary antioxidants is to scavenge radicals to inhibit chain initiation Secondary antioxidants crush the formation of radicals and defend against oxidative damage.
Guava Health Benefits Against Neoplasm
The extract from the leaves of guava has significant anti-tumor activity in colorectal carcinoma.
Another significant guava health benefits are anti-tumor activity against breast cancer.
Furthermore, young guava leaves revealed an anti-tumor activity against prostate cancer cells.
Additional Guava Health Benefits
Epidemiological studies show frequent consumption of guava helps in the lowering the risk of stroke and cancer.
In-vitro LDL oxidation test suggests that guava extracts were an efficient antioxidant for LDL.
Furthermore, guava fruits may have potential health effects on the prevention of atherosclerosis development.
Another significant guava health benefits is a good source of both natural antioxidants and antioxidant dietary fiber.
Regular intake of Guava reduces the risk of diabetic complications.
Research studies show guava helps in a significant fall in systolic and diastolic blood pressure.
Notable guava health benefits are delaying the intestinal absorption of glucose, thus improving glucose tolerance.
Moreover, tannic acid, gallic acid is directly related to anti-glycation activities of guava fruit pulp.
The raw fruit peel has the higher concentration of Magnesium. This favours insulin dependent uptake of glucose in peripheral tissues, decreasing blood sugar level.
Guava Health Benefits In Lowering Cholesterol
A study in hypertensive patients after guava fruit intake show a significant fall in Total Cholesterol, Triglycerides and an increase in HDL.
The phenolic and flavonoid contents in guava pulp may have an important role in inhibiting lipid peroxidation.
Guava fruit without peel is more effective in decreasing blood sugar as well as serum total cholesterol, triglycerides and LDL.
It could be a readily available dietary supplement in improving blood pressure, blood sugar and serum lipid parameters.
Another Significant guava health benefits are helpful in regulating blood sugar and preventing dyslipidaemia.
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