Sodium Content in a 9oz Glass of Milk
A 9-ounce glass of whole milk contains approximately 141 mg of sodium.
Calculation Based on Standard Serving Size
- An 8-ounce (237 mL) serving of whole milk (3.25% fat) contains 125 mg of sodium 1
- For a 9-ounce serving, the sodium content would be proportionally higher: (125 mg ÷ 8 oz) × 9 oz = approximately 141 mg of sodium 1
Sodium Content Across Different Milk Types
The sodium content varies slightly depending on the fat content of the milk:
- Nonfat milk (8 oz): 130 mg sodium 1
- Low-fat milk, 1% (8 oz): 120 mg sodium 1
- Low-fat milk, 2% (8 oz): 125 mg sodium 1
- Whole milk, 3.25% (8 oz): 125 mg sodium 1
For a 9-ounce serving, these values would scale proportionally to approximately 146 mg, 135 mg, 141 mg, and 141 mg respectively 1.
Clinical Context
- The sodium content in milk is naturally occurring and relatively consistent across brands, with research showing a mean of 42 mg per 100 gm of whole milk 2
- This translates to approximately 106 mg per 8 oz serving based on historical FDA Total Diet Study data 2
- Milk is considered a low-sodium beverage, meeting the criteria for "sodium-free" (<5 mg/serving) or "very low sodium" (<35 mg/serving) classifications when compared to many other beverages 1
Important Considerations
- The sodium in milk contributes minimally to daily sodium intake limits, representing less than 10% of the recommended daily maximum of 2,300 mg for most adults 1
- Unlike processed foods where sodium content can vary dramatically between brands, milk sodium content is relatively stable due to its natural occurrence 2
- Milk provides essential nutrients including calcium, potassium, and vitamin D while maintaining low sodium levels, making it a nutrient-dense beverage choice 1, 3