Table 2:

The concentrations (ng/ml or ng/g) of progesterone, estrogens in milk and milk products (93)

Hormones	Milk	Cream	Butter	Yogurt	Gouda cheese
Progesterone	9.81	48.6	141	13.3	44.2
17β-estradiol	0.02	0.03	0.3	0.02	0.03
Estreone	0.13	0.26	1.47	0.16	0.17