Fruit and Vegetable Juices and Diabetes.

All of the sugar absorption rates in the table are for juices without added sugar.

How Much Fruit Juice?

The general recommendation if you have diabetes is to drink only 1 glass of fruit juice per day with a meal. 1 glass being ¼ of a pint (5 fluid ozs or 120ml).

The recommendation for just 1 glass, in my (non medical) opinion is probably intended for those on diet and exercise who don't monitor at home.

If you do drink it more often, monitor the results occasionally to make sure your blood sugar levels don't go to high. The lower rate juices like unsweetened cloudy apple juice or tomato juice should have less effect.

Cloudy, Filtered or Clear?

Fruit juice is missing some of the fibre in the original fruit, some types may be reconstituted too so blood sugar levels will rise more quickly than when compared to eating the fruit.

Cloudy or unfiltered fruit (or vegetable) juice with some of the fruit/vegetable pulp remaining in the juice, makes blood sugar levels rise more slowly than filtered juice.

5 a day.

¼ of a pint of fruit or vegetable juice count as 1 of the recommended 5 (or more) portions of fruit and vegetables a day.
Fruit JuiceSugar Absorption RateNotes
Apple JuiceMedium to Slow(Cloudy) Cloudy versions have more fibre and a slightly slower conversion to blood sugar than clear apple juice.
Carrot JuiceMedium Has a slower conversion to blood sugar than cooked Carrots because its juiced raw.
Cranberry JuiceQuick to Medium One of the fruit juices with a fairly quick conversion to blood sugar, other fruit juices are better.
Grape JuiceMedium Only just in the medium band other juices have slower rates.
Grapefruit JuiceMedium Can effect some drugs like the Cholesterol Lowering Drugs (Statins) and Blood Pressure Lowering Drugs.
Lemon and Lime JuiceVery Slow? Both with only about ¼ of the carbohydrate of apple are likely to have a very low effect on blood sugar levels.

Lime has a wonderful taste too, with diet bitter lemon my favourite summer drink, even if a little sharp!

Orange Juice
Pineapple JuiceMedium Curiously has a slower conversion to blood sugar than Pineapple itself. Although I have seen this result in a number of places I don't trust this value and I suggest you treat this one with a little caution as Pineapple is one of the fruits with a quick conversion to blood sugar.
Tomato JuiceSlow