Researchers have found that drinking guava juice can help lower the chance of anemia, especially for women and teenage girls in low‑income regions.
Why Guava Juice Helps
Guava is packed with vitamin C, which makes the body absorb iron from food better. In fact, guava has up to four times more vitamin C than oranges. It also contains vitamin A, folate, fiber, and a little iron.
What the Studies Show
Scientists looked at 17 studies done since 2000. Most of them were from Indonesia and involved either pregnant women or teenage girls. When participants drank guava juice together with iron supplements, their hemoglobin rose by an average of 1.71 g/dL.
Teenage girls saw an increase of about 1.5 g/dL, while pregnant women improved by roughly 1.8 g/dL.
Juice Plus Iron Beats Iron Alone
Five studies compared two groups: one took iron tablets only, the other took iron tablets plus guava juice. The combined group had hemoglobin levels about 1.3 g/dL higher.
Raising hemoglobin by 1‑2 g/dL can move a person from mild anemia to a healthy range, reducing fatigue and improving focus.
Possible Use in Public Health
Even with some limitations—such as all studies being from one country and many using weaker designs—experts think guava juice could be a cheap, culturally accepted tool in school meals, prenatal care, or community programs.
Because guava juice is affordable and popular in many Asian countries, it could be added to nutrition plans to fight mild‑to‑moderate anemia.
What Experts Say
Scientists note that the findings support what we already know: vitamin C helps the body use iron better. However, they also say more strong research is needed before guava juice can replace standard anemia treatments.