Is sweet potato healthier than white potato?

Answered by James Kissner

When it comes to comparing the nutritional value of sweet potatoes and white potatoes, it’s important to note that both types can be highly nutritious and offer different health benefits. Let’s take a closer look at their nutritional profiles to understand how they differ.

Calorie and Macronutrient Content:
Both sweet potatoes and white potatoes are relatively low in calories, making them a great addition to a balanced diet. A medium-sized sweet potato and a medium-sized white potato contain roughly the same amount of calories, averaging around 100-120 calories.

In terms of macronutrients, the protein and carbohydrate content of sweet potatoes and white potatoes is also quite similar. Both types provide around 2-3 grams of protein and 20-25 grams of carbohydrates per medium-sized potato. However, it’s worth noting that the specific nutrient content can vary slightly depending on the size and variety of the potato.

Vitamin and Mineral Content:
While the calorie and macronutrient content may be comparable, sweet potatoes and white potatoes differ in their vitamin and mineral content.

Sweet potatoes are particularly rich in vitamin A, which is essential for maintaining healthy vision, immune function, and skin health. A medium-sized sweet potato can provide over 400% of the recommended daily intake of vitamin A. In addition, sweet potatoes are a good source of vitamin C, which supports immune function, and contain smaller amounts of vitamins E and K.

On the other hand, white potatoes are higher in potassium compared to sweet potatoes. Potassium plays a crucial role in maintaining proper heart and muscle function, as well as regulating blood pressure. A medium-sized white potato can provide around 20% more potassium than a sweet potato.

Other nutrients found in both types of potatoes include B vitamins, such as folate and vitamin B6, which are important for energy metabolism and brain function. Both types also contain small amounts of minerals like iron and magnesium.

Glycemic Index and Fiber Content:
When considering the impact on blood sugar levels, sweet potatoes have a lower glycemic index (GI) compared to white potatoes. The GI measures how quickly a carbohydrate-rich food raises blood sugar levels. Sweet potatoes have a lower GI due to their higher fiber content, which slows down digestion and absorption of carbohydrates.

While white potatoes have a slightly higher GI, they can still be part of a healthy diet, especially when consumed with protein and healthy fats to help balance blood sugar levels. However, it’s important to note that the GI can vary depending on how potatoes are prepared and cooked.

The choice between sweet potatoes and white potatoes ultimately depends on an individual’s specific nutritional needs and dietary preferences. Both types offer important nutrients and can be part of a well-rounded diet. It’s beneficial to include a variety of colorful fruits and vegetables, including both sweet and white potatoes, to ensure a diverse range of nutrients in your meals.

Personal Experience:
As a nutritionist, I often recommend incorporating both sweet potatoes and white potatoes into my clients’ diets. Personally, I enjoy the versatility of both types of potatoes and find them to be nutritious additions to my meals. Whether I’m roasting sweet potato wedges or enjoying a baked white potato topped with some healthy toppings, I appreciate the unique flavors and health benefits they offer.