What are Nonfat Milk Solids and Why Do They Matter for Dairy Products?
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Dairy products including milk. yogurt and processed dessert are essential sources of protein for human beings.
Consumer who are interested in check the certain nutrients of the products and carefully examine the nutritional information on milk and dairy products may simultaneously notice a line at the bottom of the nutritional information that reads, “Non-fat milk solids ≥ 8.1g/100ml.”
This raises the question: what are non-fat milk solids, and what does this statement mean?
What are Non-Fat Milk Solids (NFMS)?
Milk is traditionally understood to consist of water and the remaining components collectively referred to as milk solids. The milk solids can be further divided into six components: fat, protein, carbohydrates, vitamins, and minerals.
When discussing non-fat milk solids, we refer to the portion of the milk that excludes both fat and water. [1] To put it in a more intelligible manner, when original milk is processed to remove all water within the content, resulting in a dry, powdery substance, and with further steps to remove fat, resulting in skimmed milk powder. It will then be the 100% substitute for for non fat milk solids.
Non-fat milk solids primarily include proteins, carbohydrates, vitamins, and minerals. They are relatively minor components of the milk but are essential for various bodily functions and contribute to the nutritional value of milk.
Here’s a breakdown of these components, which fall under the category of non-fat milk solids:
- Proteins: Vital for building and repairing tissues, making enzymes, hormones, and other body chemicals.
- Carbohydrates: Mainly in the form of lactose, providing energy.
- Vitamins: Essential for metabolic processes, including Vitamin B complex and Vitamin D.
- Minerals: Important for bone health and other functions, including calcium and potassium.
Nutritional Facts of Milk
Credit: The Kitchn
The Nutritional Essentialness of Non-Fat Milk Solids
Non-fat milk solids are critical for assessing the nutritional value of milk. The higher the content of non-fat milk solids, the richer the milk is in nutrients such as proteins lactose, minerals, and vitamins, indicating higher milk quality. Below are explanations to why and how each component of non-fat milk solids contribute to nutritions and health.
Proteins
Non-fat milk solids (NFMS) are rich in proteins such as casein and whey, which are essential for building and repairing body tissues.
Proteins also play a crucial role in enzyme production, which helps regulate various bodily functions. They have more significance with regard to health now that proteins in NFMS support the immune system by forming antibodies, contributing to overall health and disease resistance.
Carbohydrates
The primary carbohydrate found in NFMS is lactose, which serves as a quick source of energy. Lactose is not only an important energy provider but also aids in the absorption of calcium, which is vital for the development and maintenance of strong bones and teeth.
Vitamins
NFMS are a significant source of water-soluble vitamins, including B-complex vitamins (such as B12 and riboflavin) and vitamin C. These vitamins are crucial for various bodily functions, including supporting energy metabolism, forming red blood cells, maintaining nervous system health, and promoting healthy skin, thus preventing deficiencies and enhancing overall well-being.
Minerals
Key minerals in NFMS include calcium, potassium, and magnesium. Calcium is essential for maintaining strong bones and teeth, while potassium and magnesium are important for muscle function, including heart muscles, and for maintaining fluid balance and regulating blood pressure, thereby supporting cardiovascular health.
Regulations with Regard to NFMS
In China, according to the national standards GB 19645—2010 (Food National Standard Pasteurized Milk) and GB 25190—2010 (Food Safety National Standard Sterilized Milk), the non-fat milk solids content must be at least 8.1g per 100g. This standard helps determine the quality of milk, and although some companies may choose to label the non-fat milk solids content on their packaging, it is not mandatory.
GB25190-2010
Credit: Ministry of Health of the People’s Republic of China
In Western countries, the standards for non-fat milk solids (NFMS) vary, with some regions having stricter requirements than others. For instance, in the United States, the federal standard mandates that milk should have a minimum of 8.25% solids-not-fat (SNF). However, California has higher standards, requiring at least 9% SNF in nonfat milk, 11% in low-fat milk, and 10% in reduced-fat milk.
In Western countries, the standards for non-fat milk solids (NFMS) vary, with some regions having stricter requirements than others. For instance, in the United States, the federal standard mandates that milk should have a minimum of 8.25% solids-not-fat (SNF). However, California has higher standards, requiring at least 9% SNF in nonfat milk, 11% in low-fat milk, and 10% in reduced-fat milk.
Bibliography & Recommended Readings
- [1] What are Nonfat milk solids? Reddit, https://www.reddit.com/r/AskCulinary/comments/qxtjmn/nonfat_milk_solids/
- [2] China’s National Food Safety Standard for Pasteurized Milk (GB 19645-2010), Link
- [3] China’s National Food Safety Standard for Sterilized Milk (GB 25190-2010), Link
- [4] How is Skimmed Milk Made? Christine Gallary, Feb 10, 2015, The Kitchn, Link
