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Table 1 Nutritional composition of the two types of milk

From: Effects of cow’s milk beta-casein variants on symptoms of milk intolerance in Chinese adults: a multicentre, randomised controlled study

Nutrient (per 100 mL) A2 milk A1 milk
Energy (kJ) 278 270
Protein (g) 3.3 3.3
Fat (g) 3.7 3.5
Saturated fat (g) 2.4 2.1
Carbohydrate (g) 5 4.8
Sodium (mg) 37 45
Calcium (mg) 117 120
Lactose 5 4.8
  1. A1 conventional milk containing A1 and A2 β-casein, A2 milk containing A2 β-casein