Guava is an excellent source of vitamins, minerals & fibres. It has the ability to treat male infertility. Guava can act as an antioxidant. Guava is a good remedy for prolonged menstruation. It has the potential to control your blood pressure level. It is a good diet for preventing obesity. It is also recommended for people suffering from asthma. It is also beneficial for lung congestion.
The Issue of ScienceDaily , dated Dec31, 2008 states a news: ‘In a new study led by the University of Michigan Health 
System, women more than doubled theirfruit and vegetable intakes and dramatically increased their consumption of “good” fats when they were counseled by registered dietitians and provided with a list of guidelines on the amount of certain foods they should eat each day’.
A group of 69 ladies was taken to undergo the study. The group was divided into two groups. One was given the ‘exchange list’ of Mediterranean dietary plan. The exchange list was designed in a way that it supported the routine fat andcalories intake of each participant.
The dietitians gave switching options in various food items like olive oil and dark green vegetables like spinach.
The exchange list comprised of limited usage of: olive or hazelnut oil, avocado, macadamia nuts, corn oil, margarine, tahini, pine nuts, sesame seeds, broccoli, peas, spinach, garlic, onions, leeks, basil, cilantro, peppermint, sage, tomatoes, tomato sauce and salsa, carrots, red bell peppers and pumpkin, artichokes, cucumber, green beans, sugar snap peas, fruits: oranges, mangoes, strawberries, apples, bananas and grapes.
The results of another study have shown that the so-called fighting powers of different vitamins (like E, C and 
beta-carotene) prove ineffective to avoid cancer in women when used in supplement forms.
The surprising thing about the study is that is declares ineffective even to beta carotene which is a much hyped vitamin supplement to avoid cancer.
Jennifer Lin, who led the study, says in this connection: “Just taking vitamins supplements is not enough to hamper the growth of cancer.”
But consuming a good amount of different vegetables and fruit is not a bad idea in this regard, says Lin.
During the past some years, several studies have shown that different vitamins supplements like C, D, E, provide no help to avoid cancer whether they are taken alone or in combinations. The new findings oppose other studies which have suggested that vitamin supplements help to avoid cancer because of their antioxidants effect.
