Many nutritional analysis show that guava has an superior vitamin C content compared to many citrus fruits; an average guava fruit can provide many times more vitamin C than the recommended daily intake.
Vitamin C not only activates enzymes needed for collagen synthesis but also protects pre-collagen molecules from oxidation, helping collagen fibers form more properly and sustainably.
Collagen is easily destroyed by oxidative stress from UV rays, pollution and chronic inflammation. Guava provides not only vitamin C but also many polyphenols, flavonoids and carotenoids, antioxidants that can neutralize free radicals, reducing damage to proteins and lipids in cells.
Research in vitro and analysis of guava's composition shows that guava extract reduces oxidative markers in skin cells, creating a premise for long-term collagen conservation.
Some preclinical studies and small studies show that guava products (persaturated water, fermented extract) have the potential to promote collagen in skin fiber cells and improve moisture index, elasticity when used on the skin or eaten together.
Although more randomized, conjectured studies are still needed on a large scale, the current results support the additional role of guava in the skin care program and support the recovery of tissue damage.
Collagen does not only depend on vitamin C; the body needs enough protein (amino axes such as glycine, proline), minerals and a healthy metabolic environment to synthesize and maintain the collagen network.
Guava contributes by providing vitamins, fiber and anti-inflammatory active ingredients, helping to improve nutrient absorption, maintain a healthy microbiome and reduce chronic inflammation, indirect factors but important for effective collagen production. You should increase your daily intake of guava.
To maximize the benefits, nutritionists recommend eating whole, fresh guava (keep the skin clean) or using fresh juice without added sugar.
A glass of guava juice in the morning or 1-2 guava fruits per day can help reach or exceed the daily vitamin C needs of many people.
For people at risk of oxalate stones or taking specific medications, you should consult your doctor before increasing the amount of specific fruit.
Combining guava with a healthy source of protein (yogurt, nuts, beans) creates conditions to provide adequate ingredients for the body to build collagen.
