Fruit

Some fruits contain a lot of sugar, albeit natural,

which means you are still at risk of obesity.  

When starting a new diet, a common first step is to eat more fruits and vegetables
since they are considered healthy with almost no calories

and are abundant in vitamins.

However do note that some fruits contain a lot of sugar, albeit natural, which means you are still at risk of obesity. 
Below are some fruits to avoid

for those concerned about diabetes
and seeking to lose weight as compiled by International Business Times.
Mangoes
One mango contains at least 26 grams of sugar and 30 grams of carbs.

These numbers are quite high so it is recommended to just eat half a mango. 
Those looking to maintain their sugar level should also opt to eat mango that is soft

since it means the sugar level is higher compared to a not-too-ripe one.
Grapes
One grape already contains a gram of carbs.

Therefore, you shouldn't eat more than 15 if you want to lose some weight. 
In case you are tempted to eat more,

 just count them and place them in a bowl.

The same goes for strawberries,

as 1 to 1/4 cup has the same sugar content as a serving of grapes. 

Bananas
Bananas seem to be the most misunderstood food among dieters.

Yes, they are healthy but, as always, less is more. 
If you do not want to gain weight

you shouldn't eat more than half a banana a day,

since one medium sized banana contains twice the amount of carbs

as two servings of other types of sweet fruits.
Pineapples
Because of their high fiber content, people tend to think that

pineapples are the perfect ingredient for a healthy diet. 
Ripe ones are actually a high glycemic food.

Therefore, you should not consume too much of it,

better just half a cup, alongside a protein-rich snack or meal.
Avocados
The trendy superfood is rich in healthy fats, but also in calories.

Around 100 grams of the green fruit contains about 160 calories. 
It is fine to eat avocados from time to time, but avoid consuming it in high amounts. 
Fruit juices
Fruit juices are perceived as refreshing and healthy.

Still, you should avoid drinking them if you are diabetic,

even when the juice is made of 100 percent fruits;

just consider how many fruits are needed to produce a single glass of juice.

Dried fruits
Dried fruits are not an ideal snack in a diet.

Even when dried, fruits still contain a lot of sugar and carbs. 
Your best bet is to avoid the preserved versions

and stick to small portions of raw fruits and vegetables.