Are Sweet Potatoes a Healthy Food Choice If You Have Diabetes? (2024)

If you have diabetes, you may be scratching your head over sweet potatoes. You’re wondering whether or not sweet potatoes are safe for you to eat, the answer is, yes… sort of.

Here’s why.

You might not know it after a trip to the supermarket, but there are over 400 varieties of sweet potatoes available around the world. Some of these are better for people with diabetes to eat than others.

Your portion size and cooking method are important.

Knowing the glycemic index (GI) and glycemic load (GL) for the sweet potato variety you choose are also important factors.

GI is a ranking system for foods containing carbohydrates. The ranking, or number, assigned to a food indicates its effect on blood sugar levels.

GL is also a ranking system. The GL ranking takes into account a food’s GI as well as the portion size, or grams per serving.

In this article, we’ll break down everything a person with diabetes needs to know about eating sweet potatoes. This information can help you enjoy them without worry. We’ll even provide some recipes you might like.

The scientific name for sweet potatoes is Ipomoea batatas. Sweet potatoes of all kinds are good alternatives to white potatoes. They’re higher in fiber and nutrients, such as beta carotene.

They also have a lower GL. Like white potatoes, sweet potatoes are high in carbohydrates. Even so, people with diabetes can eat them in moderation.

There are certain types of sweet potatoes that have been shown to have benefits for people who are concerned about blood sugar and obesity. We’ll discuss varieties of sweet potatoes and their benefits in the next section.

In addition to their nutritional value, sweet potatoes contain properties that may lower the risk of type 2 diabetes.

Some of the nutrients found in sweet potatoes are:

  • vitamin A in the form of beta carotene
  • protein
  • fiber
  • calcium
  • iron
  • magnesium
  • phosphorus
  • potassium
  • zinc
  • vitamin C
  • vitamin B-6
  • folate
  • vitamin K

Orange sweet potatoes

Orange sweet potatoes are the most common type found in U.S. supermarkets. They’re reddish-brown on the outside and orange on the inside.

When compared to regular white potatoes, orange sweet potatoes have a higher fiber content. This gives them a lower GI and makes them a healthier option for people with diabetes.

Some studies indicate that boiled orange sweet potatoes have a lower GI value compared to baking or roasting them.

Purple sweet potatoes

Purple sweet potatoes are lavender-colored on the inside and outside. They are sometimes marketed under the names Stokes Purple and Okinawan potatoes.

Purple sweet potatoes have a lower GL than orange sweet potatoes. In addition to nutrients, purple sweet potatoes also contain anthocyanins.

Anthocyanins are a polyphenolic compound that studies indicate may reverse or prevent obesity and type 2 diabetes risk by improving insulin resistance.

A review of studies found that anthocyanins work in the body via multiple mechanisms, including reduction of carbohydrate digestion in the gut.

Japanese sweet potatoes

Japanese sweet potatoes (Satsuma Imo) are sometimes referred to as white sweet potatoes, even though they’re purple on the outside and yellow on the inside. This strain of sweet potato contains caiapo.

A study found that caiapo extract was able to significantly reduce fasting and two-hour blood glucose levels in subjects when compared with placebo. Caiapo was also shown to reduce cholesterol.

Since sweet potatoes are high in carbohydrates, they can spike blood sugar levels. Their fiber content helps to slow down this process.

Orange sweet potatoes have a higher GI. This can increase your blood sugar level, compared to other sweet potato varieties.

No matter which type of sweet potato you choose, limit your quantity and opt to boil or steam instead of bake.

When eaten in moderation, all kinds of sweet potatoes are healthy. They’re very high in antioxidants, vitamins, and minerals and can safely be included in a diabetes-friendly diet.

Here are some diabetes-friendly recipes you can try:

Sweet potatoes are a better nutritional option than white potatoes. Even so, they should be enjoyed only in moderation, or they may negatively affect blood glucose levels.

Some sweet potatoes are very large in size, making it easier to eat too much. Always opt for a medium-sized potato and make sure to include other healthy foods in your meal plan on a daily basis.

When eaten in moderation, sweet potatoes can be part of a healthy food plan when you’re living with diabetes. Some types of sweet potatoes may even provide benefits to help you manage your condition.

These include Japanese sweet potatoes and purple sweet potatoes.

Sweet potatoes are nutrient-dense but also contain carbohydrates. Keeping your portions small and boiling instead of baking will help ensure a lower GL.

Are Sweet Potatoes a Healthy Food Choice If You Have Diabetes? (2024)

FAQs

Are Sweet Potatoes a Healthy Food Choice If You Have Diabetes? ›

Sweet potatoes are known to be high in fiber and have a low glycemic index, which results in a less immediate impact on blood glucose levels. This can help people with diabetes keep their blood sugar levels in check. Sweet potatoes can be: Baked or microwaved.

Can diabetics eat sweet potatoes every day? ›

Are there benefits to eating sweet potatoes if you have diabetes? When eaten in moderation, all kinds of sweet potatoes are healthy. They're very high in antioxidants, vitamins, and minerals and can safely be included in a diabetes-friendly diet.

Which is better for a diabetic baked potato or sweet potato? ›

Despite their natural sweetness, sweet potatoes have a relatively low GI compared to regular potatoes, making them a favorable choice for individuals with diabetes. Additionally, sweet potatoes contain beta-carotene, a potent antioxidant that supports eye health and overall immunity.

Which potatoes are healthiest for diabetics? ›

Best type of potatoes for diabetes

Sweet potatoes are one of the best types of potato for people with diabetes, as they are low-GI and contain more fiber than white potatoes. Sweet potatoes are also a good source of calcium and vitamin A. Carisma potatoes, a variety of white potato, are another lower-GI option.

Are sweet potato fries better than regular fries for a diabetic? ›

"If you have prediabetes or diabetes, choosing sweet potato over white potato can help reduce your chance of a blood sugar spike," adds Willingham.

Are too many sweet potatoes bad for you? ›

Sweet potatoes contain beta-carotene, and their excessive consumption can lead to hypervitaminosis A (vitamin A toxicity), in which excess vitamin A accumulates in the liver. Although it is not considered harmful, the color of the skin and nails may turn orange.

Does sweet potatoes turn to sugar in the body? ›

As they are digested, they turn into maltose, a sugar our body can use for energy, thus causing a spike in our blood sugar levels. Simply put, once heat breaks down the starch in sweet potatoes, it's easier for your body to convert it into sugar, thus affecting your blood sugar levels more immediately.

Are bananas good for diabetics? ›

Bananas are a delicious, nutritious and affordable food for everyone, including those with diabetes. Eating this healthy fruit can help stabilize blood sugar levels, improve insulin sensitivity and improve heart health.

Is peanut butter good for diabetics? ›

Peanut butter contains essential nutrients, and it can be part of a healthful diet when a person has diabetes. However, it is important to eat it in moderation, as it contains a lot of calories. People should also make sure their brand of peanut butter is not high in added sugar, salt, or fat.

Are carrots or sweet potatoes better for diabetics? ›

To keep your blood sugar levels in check, it's best to reach for sweet potatoes, which are high in fiber (eat the skin for more fiber), as well as a host of other vitamins.

What are the 5 worst foods for blood sugar? ›

Foods to limit or avoid
  1. Refined grains. Refined grains like white bread, pasta, and rice are high in carbs but low in fiber, which can increase blood sugar levels more quickly than their whole grain counterparts. ...
  2. Sugar-sweetened beverages. ...
  3. Fried foods. ...
  4. Alcohol. ...
  5. Breakfast cereal. ...
  6. Candy. ...
  7. Processed meats. ...
  8. Fruit juice.

What is the best fruit for diabetics? ›

The Best Fruits for People With Diabetes
  • berries — Both citrus and berries are recommended as superfoods by the American Diabetes Association.
  • cherries.
  • plums.
  • grapefruit.
  • peaches.
  • apples — High fiber fruits like apples and pears help to slow a spike in blood sugar, Rose says.
  • pears.
  • kiwi.
Nov 3, 2021

Is oatmeal good for diabetics? ›

According to MedlinePlus, adults with type 2 diabetes may benefit from eating whole grains like oats, due to their potential glucose and cholesterol-lowering effects. Plus, the soluble fiber in oats may help you hit your blood sugar goals and keep your weight in check.

How much sweet potato can a diabetic eat? ›

“Sweet potatoes are a source of carbohydrates, which raise blood sugars,” says White. “People with diabetes can eat carbs but need to watch portions of foods with carbs.” What this means: Limit portions to half a sweet potato per meal or snack.

Can you eat French fries with diabetes? ›

Avoid Fried Foods Like French Fries and Chicken Nuggets

Fried foods are usually breaded, which can add up to lots of carbohydrates, unhealthy fats, and calories, says Kimberlain. Too much fat in your diet can lead to weight gain, she adds, which can worsen type 2 diabetes.

What is a diabetic substitute for fries? ›

Try zucchini fries, green bean fries, polenta fries, eggplant fries, portobello fries and more, in this roundup of easy fries that aren't potato-based.

How many times a week should you eat sweet potatoes? ›

Because of their higher sugar levels and high vitamin A content, you can likely enjoy them in moderation about two or three times per week. Eating these vegetables too often could lead to too much vitamin A intake or increase the potential for negative effects on your blood sugar.

When is the best time to eat sweet potatoes? ›

Lunch: The best time to eat the sweet potato is to eat at lunch. After eating, calcium in sweet potatoes takes 4-5 hours to absorb into the body, 2 to 5 pm sunlight can promote calcium absorption. In addition, the ability to help the potatoes long enough to work to help you reduce appetite in the evening.

What has more sugar, carrots or sweet potatoes? ›

While dehydrated sweet potatoes have less sugar than dehydrated carrots (18% and 40%, respectively), they have similar levels when fed raw (4.2% and 4.7%, respectively), as noted previously. Both are rich sources of beta-carotene, which is the precursor to vitamin A.

What foods can diabetics eat freely? ›

Here are some examples of free foods for diabetics, as outlined by a committee of the American Diabetes Association and the Academy of Nutrition and Dietetics:
  • Carbonated water.
  • 1 tablespoon unsweetened cocoa powder.
  • Coffee or tea.
  • 1 cup raw cabbage.
  • Hard, sugar-free candy.
  • 1 cup raw cucumber.
  • 2 tablespoons whipped topping.
Jul 13, 2007

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