There is a belief that underground-grown veggies should not be consumed by diabetics. Particularly tuber varieties should never be consumed. It is rumored that too much starch in it will cause a spike in blood sugar. However, you might be asking if diabetics should actually avoid all tubers altogether. This article offers a solution to that. 
Carrot, beetroot, elephant leg yam, cassava, and sugar beet are examples of underground tubers. See which of these tubers diabetics can consume and at what time of day their blood sugar won't spike.

Carrot, beetroot
Several diabetics avoid eating carrots and beets. But diabetics should stay away from both carrots and beets. However, you can confidently include daily servings of carrots and beets in your diet. Both of these have a very low glycemic load but a somewhat higher glycemic index. Therefore, you are free to consume it frequently in the form of salad, fries, or smoothies.

Elephant leg yam
The elephant leg yam is the best variety of yam for those with diabetes. The elephant leg yam is the potato with the lowest glycemic index and load.
Even moderate doses of this yam per day are safe for diabetics. It can be eaten fried or in gravy. But avoiding fried meals is preferable. Take even a single cup. It has a lot of fiber as well. The afternoon is the ideal time to take it. 

Sugar beet

Some individuals dislike eating tubers. One of the causes is the worry that eating yams may make you gain weight. The exception is sugar beet, though. This magnificent tuber has sweet fruits and a tangy flavor, as the name would imply. It can be eaten raw or after being boiled with water.
Many individuals believe that diabetics shouldn't eat sugar beets since its name implies sweetness. That's incorrect. It really possesses the opposite traits. Additionally, it has the ability to stop diabetes. 
 

This plant is a member of the potato genus. Due of its sweet flavor, it is referred to as "sugar potato." 'Ipomoea patatas' is the sugar beet's botanical name.

Due to its low glycemic index, sugar beet is also safe for diabetics to consume. In other words, this tuber aids those who eat it in smooth insulin secretion in the body and stable blood sugar levels. Additionally, the fiber in it can slow down the rate at which food-derived glucose enters the circulation. Additionally, recent study suggests that it gradually elevates blood sugar levels.

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