The following broad rules apply when using mixtures of juices:

1. Juices from sweet fruits may be combined with juices of sub-acid fruits, but not with those of acid fruits, vegetable fruits or vegetables.

2. Juices from sub-acid fruits may be combined with juices of sweet fruits, or acid fruits, but not with other juices.

3. Juices from acid fruits may be combined with those of sub-acid fruits or vegetable fruits, but not with other juices.

4. Juices from vegetable fruits may be combined with those of acid fruits or of green leafy vegetables, but not with other juices.

5. Juices from green leafy vegetables may be combined with those of vegetable fruits or of the root vegetable, but not with other juices.

6. Juices from root vegetables may be combined with those of green leafy vegetables, but not with other juices.

A proper selection of juices in treating a particular ailment is very essential. Thus, for instance, juices of carrot, cucumber, cabbage, and other vegetables are very valuable in asthma, arthritis and skin disease, but juices of orange and mosambi aggravate their symptoms by increasing the amount of mucus.