Aloe juice, usually made from aloe latex, a sticky yellow substance just inside the green skin covering on an aloe leaf, may be used to treat a variety of conditions. There is relatively more scientific proof about aloe's efficacy than many other herbs, but many aspects of its use are still based on folk medicine or traditional uses, with only early studies, or no studies at all, to back it up.
Laxative
Aloe juice has strong laxative effects--so strong, in fact, that it may cause painful cramping and is generally only recommended if gentler laxatives, such as cascara sagrada or senna, have not proven to be effective. Aloe juice may be mixed with antispasmodic herbs to help reduce cramping. Pregnant women should always consult with a doctor before using aloe vera as it stimulates the uterus and also because aloe juice preparations may have more of the aloin compound than is considered safe during a pregnancy.
Diabetics
Preliminary studies indicate that aloe juice might help reduce blood sugar in diabetics; more research is needed to draw useful conclusions. Diabetics should always consult with a medical professional before taking aloe juice, especially in conjunction with diabetic medications.
Balancing
Aloe juice is reputed to help balance and heal the entire digestive system and may be used to treat ulcers, colitis and irritable bowel. While scientific proof is lacking, aloe is believed to help enhance nutrient absorption and to stimulate the body's own immune and healing abilities.
Interactions
Drinking aloe juice may decrease your body's potassium levels. If you are taking any other diuretic products--which tend to reduce potassium--or take digoxin to treat heart problems, consult a doctor before drinking aloe juice as well. The combination of the two products might bring your potassium levels dangerously low. While no other major drug interactions have been reported, using aloe juice as a laxative may produce diarrhea, which in turn may reduce the absorption of some medications.
Cancer
Aloe as a cancer treatment is the subject of active debate; some preliminary studies indicate it may help to shrink tumor size and some "miracle cancer cures" have been reported with aloe use. Nonetheless, the American Cancer Society warns that aloe is unproven and, in fact dangerous, as a cancer remedy.
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