Chocolate milk is a type of flavored milk made by mixing cocoa solids with milk (either dairy or plant milk). It is a food pairing in which the milk's mouthfeel masks the dietary fiber of the cocoa solids.
However, the particles from cocoa solids in homemade chocolate milk will quickly sediment to the bottom. So the solution should be shaken or stirred before consumption to avoid uneven concentration. This is not a problem in some ready to drink chocolate milks.
In New York City, school food officials report that nearly 60 percent of the 100 million cartons served each year contain fat-free chocolate milk.
At or below room temperature, chocolate is a solid, which does not dissolve, but instead remains a powdered solid suspended in milk. The suspension must be stabilized, otherwise, the powder will settle. Separation can be slowed by any of the following:
Carrageenan is used at very low concentrations to form an imperceptible weak gel that prevents the large, dense particles of chocolate from sedimentation.
Ready to drink chocolate milk should be Refrigerator like unflavored milk, except some ultra-high temperature (UHT) pasteurized drinks, which can be stored at room temperature. However, it is generally served cold. The nutritional qualities of chocolate milk are the subject of debate: while some studies criticize the high sugar content of chocolate milk, other studies suggest that chocolate milk is nutritionally superior to white.
An April 2007 study from Loughborough University indicated that low-fat milk was an effective rehydration drink.
A November 2009 study conducted by scientists in Barcelona, Spain, suggests that regularly consuming skimmed milk with cocoa rich in flavonoids may reduce inflammation and slow or prevent the development of atherosclerosis. The study notes that its effects are not as pronounced as seen in consumption of red wine. "Vital Signs – Study Suggests Skim Milk with Cocoa May Reduce Inflammation". The New York Times. 9 November 2009. However, in a single serving of cocoa, other researchers found 611 milligrams of gallic acid equivalents (GAE) and 564 milligrams of epicatechin equivalents (ECE), compared with 340 milligrams of GAE and 163 milligrams of ECE in red wine, and 165 milligrams of GAE and 47 milligrams of ECE in green tea.
A study published in 2009 compared chocolate milk to a commercial recovery beverage (matched for carbohydrate and protein content) administered to cyclists after intense workouts. The researchers found no difference in post-workout plasma creatine kinase levels and muscle soreness, nor in cycling time to exhaustion. However, since chocolate milk is usually less expensive than commercial recovery beverages, the researchers concluded that chocolate milk "serves as a more convenient, cheaper ... recovery beverage option for many athletes".
A May 2010 sports nutrition study concluded that "exercise recovery during short-term periods of heavy soccer training appears to be similar when isocaloric CM (Chocolate Milk) and CHO (Carbohydrate) beverages are consumed post-exercise".
Yet another study in 2011 at Kean University in New Jersey concluded similar results in male soccer players, discovering that there was an increase in time to fatigue when chocolate milk was consumed. The Kean University study also viewed chocolate milk's effects on female soccer players undergoing morning and afternoon practices during preseason. They were either given the carbohydrate-electrolyte beverage or chocolate milk between morning and afternoon preseason practices. Following every afternoon practice, each athlete completed a shuttle run to fatigue. The study concluded that chocolate milk is just as beneficial as the carbohydrate-electrolyte beverage in promoting recovery in women.
In a 2008 study, participants who consumed one or more servings of chocolate on a daily basis had lower bone density and strength than those participants who ate a serving of chocolate six times a week or less. Researchers believe this may be due to oxalate inhibiting calcium absorption – but it could also be due to sugar content in chocolate, which may increase calcium excretion. It is clear, however, that consuming foods high in oxalate – and in turn their effect on calcium absorption – is a more significant concern for people with oxalate kidney stones, which occur when there is too much oxalate in the urine. These people especially should reduce their oxalate intake and increase their calcium intake.Katherine Zeratsky, "Chocolate: Does it impair calcium absorption?", mayoclinic.com However, the high magnesium content in chocolate is likely to reduce the risk of stone formation, because like citrate, magnesium is also an inhibitor of urinary crystal formation.
In the late 19th century, Swiss entrepreneur Daniel Peter developed a solid dehydrated version of chocolate milk so that it could be easily portioned, transported and conserved (fresh milk was rare in the cities). He eventually created milk chocolate in 1875.
|
|