What Are the Dangers of Nut Milk?

Updated April 17, 2017

Nut milks are a healthy and increasingly popular alternative to cow's milk because they are packed with nutrients, flavourful and suitable for anyone with lactose or gluten intolerance. Nut milk is easy to make at home and can be stored for short periods in a refrigerator. Despite nut milk's many beneficial qualities such as proteins, vitamins and minerals, they also have a few setbacks.

Side Effects of Nut Milk

Many of the results of nut milk are good, such as increased heart health, lower cholesterol, healthy protein intake, calcium and vitamins; however, undesirable side effects can include allergies, stained teeth and even bloating or nausea due to excessive nut milk consumption or an inability of the body to handle certain acids or nutrients in the nut milk. Many of these problems can be solved by limiting the amount of nut milk that you drink rather than by replacing it with a less healthy substitute.


Many people experience either mild or severe allergic reactions to nuts. In many cases you might not even be aware of the allergy because you simply do not eat nuts, or do not eat enough to experience allergy symptoms. Nut milk allergies can be recognised by rapidly lowering blood pressure, drowsiness, difficulty breathing and swollen eyelids; however, the symptoms may vary depending upon the strength of the allergy.

Stained Teeth

Most nuts such as cashews or almonds contain acids that can stain your teeth during oxidation. Oxidation is a process that deteriorates a chemical when it is exposed to oxygen, such as the browning of an apple. Nut staining is visible as a subtle yellowing that will get worse over time. However, the acids in nuts are at such low levels that staining can be completely prevented by proper mouth hygiene and a non-excessive intake of nut milk.

Gastrointestinal Distress

Most nuts contain large amounts of fibre and gases; these can cause gastrointestinal distress when taken in large quantities. The human body sometimes lacks certain enzymes that are necessary to completely digest elements found in most nuts. Therefore, a large intake of nuts can sometimes produce bloating, stomach cramps and even diarrhoea. This can be avoided by simply limiting nut milk intake, or having nut milk with other foods.

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