Table 4. Variation in the nutritional composition of watermelon at different maturity stages

Nutrients	Maturity stages
	Unripe	Ripe	Overripe
	Quantity	Quantity	Quantity
Moisture	94.8%	91.5%	90%
Carbohydrates	6.5%	3.5%	NR
Protein	NR	NR	1.74 g
Dietary fiber	NR	NR	1.14 g
Potassium	0.81%	0.89%	320 mg
Calcium	0.31%	0.29%	NR
Iron	0.004%	0.005%	NR
Total mineral content	1.8%	2.2%	320 mg
Vitamin A	NR	NR	1,630 IU
Vitamin C	NR	NR	23.2 mg
Lycopene	37.1 mg/kg	40.4 mg/kg	42.0 mg/kg
Citrulline	1.0 mg/g	1.1 mg/g	1.1 mg/g
References	(Abdullahi Sa’id, 2014; Rimando and Perkins-Veazie, 2005)	(Abdullahi Sa’id, 2014; Rimando and Perkins-Veazie, 2005)	(Anonymus 2022; Perkins-Veazie et al., 2001)