Grapefruit juice

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Grapefruit juice is the juice from grapefruits. It is rich in Vitamin C and ranges from sweet-tart to very sour. Variations include white grapefruit, pink grapefruit and ruby red grapefruit juice.

Grapefruit juice is important in medicine because of its interactions with many common drugs including caffeine and medications, which can alter how they behave in the body.

Canadian regulations on commercially produced and sold grapefruit juice are that it must be made from clean, mature grapefruit and may contain sugar, invert sugar, dextrose, glucose solids, class II preservative such as benzoic acid, amylase, cellulase and pectinase. According to Canadian standards, Grapefruit juice should contain more than 1.15 milliequivalents of free amino acid per 100 milliliters; more than 70 milligrams of potassium per 100 milliliters; and have an absorbance value for total polyphenolics of no less than 0.310. During the production process, the sugar content in the juice, before the addition of sugar, invert sugar, dextrose or glucose solids, should have a Brix reading of no less than 9.3. It must contain 0.7% to 2.1% of acid by weight as anhydrous citric acid.

Video Grapefruit juice

Drug interactions

Grapefruit and grapefruit juice have been found to interact with numerous drugs, in many cases resulting in adverse effects. This happens in two ways: one is that grapefruit can block an enzyme which metabolizes medication, and if the drug is not metabolized, then the level of the drug in the blood can become too high leading to an adverse effect; the other effect is that grapefruit can block the absorption of drugs in the intestine, and if the drug is not absorbed, then not enough of it is in the blood to have a therapeutic effect.

One whole grapefruit or a glass of 200 mL (6.8 US fl oz) of grapefruit juice can cause drug overdose toxicity. Drugs which are incompatible with grapefruit are typically labeled on the container or package insert. People taking drugs can ask their health care provider or pharmacist questions about grapefruit/drug interactions.

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Use in cocktails

Grapefruit juice is used in several cocktails, such as the sea breeze (which consists of grapefruit juice, vodka, and cranberry juice); the salty dog, and the grapefruit mimosa.

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See also

• Grapefruit spoon
• List of juices

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References

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External links

• Media related to Grapefruit juice at Wikimedia Commons

Source of article : Wikipedia