Sweet Potato: A Popular Food But Dan.gerous for Some People

Sweet potatoes are a familiar food loved by many for their high nutritional value, affordability, and ease of consumption and preparation. However, not everyone should eat sweet potatoes, as they can be harmful to certain individuals.

Sweet Potato – A Premium Tonic Loved by the Chinese and Japanese

Poultry meats like chicken, duck, and goose are considered very healthy white meats. Among them, sweet potato is one of the most nutritious foods. In 100g of sweet potato, there are about 25g of protein (much higher than beef, pork, goat, fish, and eggs).

In addition, sweet potatoes, especially the orange and purple varieties, are rich in antioxidants that protect your body from free radicals. Free radicals are unstable molecules that can damage DNA and trigger inflammation. Free radical damage is linked to chronic diseases like cancer, heart disease, and aging. Therefore, consuming antioxidant-rich foods like sweet potatoes is excellent for your health.

6 Great Benefits of Sweet Potatoes

1.  Rich in Nutrients: Sweet potatoes are packed with vitamins and minerals. 200 grams of roasted sweet potato with skin provides:

• Calories: 180

• Protein: 4g

• Fat: 0.3g

• Fiber: 6.6g

• Vitamin A: 769% of the daily requirement

• Vitamin C: 65% of the daily requirement

Furthermore, the orange and purple varieties of sweet potatoes are very rich in antioxidants that protect your body from free radicals.

2.  Boosts Gut Health: The fiber and antioxidants in sweet potatoes are beneficial for gut health. Sweet potatoes contain two types of fiber: soluble and insoluble. Some soluble fibers, known as mucilage, absorb water and soften your stool. A high-fiber diet containing 20-33 grams daily reduces the risk of colon cancer. Studies have shown that antioxidants in purple sweet potatoes promote the growth of healthy gut bacteria. The large number of these bacteria in the gut improves gut health and reduces the risk of conditions like irritable bowel syndrome (IBS) and infectious diarrhea.

3.  Prevents Cancer: Sweet potatoes provide various antioxidants that may help protect against some types of cancer. Anthocyanins, a group of antioxidants found in purple sweet potatoes, have been shown in test-tube studies to slow the growth of certain cancer cells, including those in the bladder, colon, stomach, and breast.

4.  Supports Vision: Sweet potatoes are rich in beta-carotene, an antioxidant. In fact, 200 grams of roasted orange sweet potato with skin provides more than seven times the beta-carotene an average adult needs daily. Beta-carotene is converted into vitamin A in your body and is used to form light-detecting receptors inside your eyes. Vitamin A deficiency is a concern in developing countries and can lead to a particular type of blindness called xerophthalmia. Eating foods rich in beta-carotene, such as sweet potatoes, can help prevent this condition.

5.  Enhances Brain Function: Consuming sweet potatoes rich in anthocyanins can improve brain function, learning ability, and memory. Although no studies have been conducted to examine these effects in humans, generally, a diet rich in fruits, vegetables, and antioxidants helps prevent mental decline and reduces the risk of dementia by 13%.

6.  Supports Immune System: Beta-carotene in sweet potatoes is a plant-derived compound converted into vitamin A in your body. The gut is where your body is exposed to many potential pathogens, so a healthy gut is a vital part of a strong immune system. It plays a key role in maintaining healthy mucous membranes, particularly in the lining of your intestines.

The "Golden Time" to Eat Sweet Potatoes

Many people like to buy sweet potatoes and store them for a longer period to make them sweeter. However, according to many nutrition experts, the "golden time" to eat sweet potatoes is right after they are harvested, as this is when they are the most nutrient-dense. On the other hand, the longer sweet potatoes are stored, the more water content they lose, the sugar content increases, and the starch undergoes changes, with minerals gradually diminishing.

People Who Should Not Eat Sweet Potatoes

Although sweet potatoes have many health benefits, for some people, eating sweet potatoes can be harmful.

1.  People with Ki.dney Disease

Sweet potatoes contain a large amount of potassium. People with kidney disease often struggle to eliminate excess potassium from the body. Excessive potassium buildup in the blood (hyperkalemia) can cause serious issues such as arrhythmias, muscle weakness, and even heart failure. Sweet potatoes also contain significant phosphorus, which can accumulate in the blood when the kidneys are not functioning well, leading to problems with bones, cardiovascular health, and nerves. Additionally, sweet potatoes can interact with certain kidney medications, reducing the effectiveness of the medication or causing unwanted side effects.

2.  People Who Are Hungry

Sweet potatoes are high in sugar and starch. Eating sweet potatoes when hungry can cause the stomach to secrete more acid than normal. This can lead to symptoms like acid reflux, heartburn, and bloating. Sweet potatoes also contain a lot of fiber and starch. When eaten on an empty stomach, the digestive system has to work harder to digest this fiber and starch, which can lead to bloating, indigestion, and a heavy feeling in the stomach. Sweet potatoes also have a medium to high glycemic index (GI), which means they can raise blood sugar levels quickly. Eating sweet potatoes on an empty stomach can cause a sudden spike in blood sugar, leading to discomfort and fatigue.

3.  People with Sto.mach Issues

Sto.mach pain is a condition where the stomach is damaged, often due to inflammation or ulcers, causing discomfort and pain. The pain can occur when overeating or on an empty stomach, when overexerting oneself or under stress. People with stomach issues, such as gastritis or digestive disorders, should avoid eating sweet potatoes when hungry to prevent worsening the condition. If you have chronic stomach problems or other digestive issues, it’s advisable to consult a doctor before eating sweet potatoes.

4.  Diabetic Patients Should Be Cautious When Eating Sweet Potatoes

Although sweet potatoes have a lower GI than regular potatoes, they still have a medium GI. This means that sweet potatoes can raise blood sugar levels, especially when eaten in large quantities or cooked improperly (like frying or baking). Sweet potatoes contain a significant amount of carbohydrates, which, when converted into glucose, can raise blood sugar levels. Therefore, diabetic patients need to control the amount of sweet potato they consume to avoid excessive blood sugar spikes. Diabetics should eat no more than half a medium-sized sweet potato per meal and no more than one sweet potato per day. It is better to boil or steam sweet potatoes rather than fry or bake them to reduce the glycemic index.

Notes When Eating Sweet Potatoes

• Do not eat r.aw sweet potatoes: Raw sweet potatoes are difficult to digest in the body because the starch cell walls are not broken down by heat. Additionally, when boiling sweet potatoes, the enzymes in the potato will break down, preventing symptoms like bloating, acid reflux, and nausea.

• Do not eat too much sweet potato: Even if you crave sweet potatoes, you should limit yourself to eating no more than about 300 grams of sweet potatoes. Eating too much can cause your digestive system to produce excess carbon dioxide (CO2), leading to bloating and gas. It’s best to avoid eating them when hungry or as the only food, as the sto.mach will release more acid, leading to discomfort.

• Do not eat sweet potatoes at night: Eating sweet potatoes at night can lead to acid reflux, especially for people with weak sto.machs or the elderly, as it can cause bloating. Additionally, since metabolism is slower at night, it can be harder to digest, leading to sleep disturbances.

• Do not eat sweet potatoes when hungry: Sweet potatoes contain sugar, and eating them on an empty sto.mach can cause excess stomach acid production, leading to bloating and discomfort. To avoid this, sweet potatoes should be cooked well, boiled, or roasted, and you can also add some alcohol to cook them to break down the enzymes. If you experience bloating, drinking ginger tea can help alleviate it.

• Do not eat persimmons with sweet potatoes: Sweet potatoes and persimmons should not be eaten together, and there should be at least a 5-hour gap between them. If eaten together, the sugar in sweet potatoes will ferment in the stomach, causing excess stomach acid production. The reaction between tannins and pectin in persimmons can cause precipitates, which may lead to gastric bleeding or ulcers.

• Do not eat the skin: Sweet potato skins are high in alkali, and while eating sweet potatoes is beneficial for those with constipation, eating the skin is not ideal for digestion. Dark spots or black marks on the skin can lead to food poisoning if consumed.