Guayeco Guava Gourmet is a family–run business that was started more than 50 years ago. All Guava Gourmet products are 100% natural made in small batches with fresh fruit contain no fillers, corn syrup, food coloring, nor preservatives. Health Benefits of Guava Guava has five times more Vitamin C than an orange. Guava is an excellent source of antioxidants, which aid the digestive system. Guava is rich in Vitamin B, potassium, and carotenoids. Guava contains iron, which helps fight against colds and viral infections. Guava has an abundance of astringents, known for enhancing the skin. Guava adds fiber to your diet, which helps reduce blood pressure.