馬鈴薯可以生吃嗎?

If potatoes are high on your list of favorite vegetables, you're not alone. According to the Department of Agriculture, potatoes are the number one vegetable consumed by Americans, followed closely by tomatoes. Part of the potato's appeal is its versatility in the kitchen. From mashed potatoes to crispy fries, there are no limits to the creative ways to cook and enjoy potatoes.

Potatoes also provide a variety of important dietary nutrients, including vitamin C, potassium and dietary fiber. Since many vegetables can be eaten raw, you may be wondering if you can also add some raw potatoes to your plate.

Is it safe to eat raw potatoes?

It's safe to eat a small portion of raw potatoes occasionally, but the starch and bitter taste may be enough to keep you away. If you're adventurous enough to try eating raw potatoes, eating too many at once may cause gastrointestinal upsets like vomiting, bloating, and diarrhea due to difficult-to-digest resistant starch and other compounds like lectins and solanine. .

What happens if you eat raw potatoes?

According to a 2022 review in the Journal of Functional Foods, raw potatoes are particularly high in resistant starch, a starch that is "resistant" to digestion but can provide many other health benefits, such as supporting gut health and improving blood sugar control and weight. manage. When bacteria break down and ferment the resistant starch in raw potatoes, they form gas and short-chain fatty acids like butyrate. Butyrate helps provide energy to the cells lining the colon. However, the fermentation of resistant starch in the intestines can cause uncomfortable bloating and gas, especially if you consume large amounts of starch at one time.

Lectins are naturally occurring proteins found in a variety of plant and animal foods. Foods with the highest lectin concentrations include legumes, grains, and nightshade vegetables (such as potatoes). Lectins are called "antinutrients" because they may inhibit the absorption of essential nutrients such as calcium and iron. Ingesting too many lectins at one time from foods such as raw potatoes or uncooked grains may cause nausea, stomach upset, vomiting, and diarrhea. Fortunately, lectins are easily destroyed by cooking, sprouting, and fermentation. As a 2020 review in Nutrients states, the health benefits of consuming whole grains and lectin-rich foods like potatoes far outweigh any potential negative antinutritional effects. That being said, people with autoimmune diseases or digestive issues should talk to their healthcare provider to find out if they should avoid lectins.

Potatoes contain bitter-tasting compounds called glycoalkaloids, which are commonly found in plants in the nightshade family and can be toxic if eaten in large amounts. Potatoes contain two glycoalkaloids: solanine and chaconine. Potatoes sold in grocery stores are closely monitored for their glycoalkaloid content. However, when potatoes are stored improperly and exposed to sunlight, glycoalkaloid concentrations can reach potentially toxic amounts.

Acute solanine poisoning may occur, especially in children, when too much of this compound is consumed from green or raw potatoes. Generally, symptoms are mild, such as vomiting, diarrhea and abdominal pain, but may also include headache, flushing, confusion and fever, according to the Nation's Capital Poison Center. Excessive ingestion of solanine has been linked to death, although this is very rare. Unfortunately, cooking does not reduce the solanine content in potatoes, but peeling potatoes that have started to turn green or sprout can help reduce the solanine content.

3 Tips to Make sure Your Potatoes Are Cooked

Puncture test: Pierce a cooked potato with a fork or sharp knife. The potatoes are thoroughly cooked when there is little resistance when pierced and your vessel is dry.
Thermometer: A potato is hot enough when the internal temperature in the thickest part reaches 210 degrees Fahrenheit.
Appearance: If you bake potatoes in the oven, the skins will become dry and crispy when the potatoes are fully cooked.

Are raw potatoes healthier than cooked potatoes?

According to a 2018 review published in the Journal of American Potato Research, raw potatoes contain nearly twice as much vitamin C as cooked potatoes because cooking destroys some of the vitamin C. They are also much higher in resistant starch, which is why raw potatoes have much higher levels of vitamin C. Potatoes may appeal to people who want to lose weight or improve their gut health. Cooking, on the other hand, increases the potassium, magnesium, and vitamin B6 content in potatoes while destroying lectins, an antinutrient that reduces the absorption of essential nutrients.

How toxic are raw potatoes?

The toxin in potatoes that makes you sick is solanine, but the concentration of this naturally occurring compound varies widely depending on potato variety, growing conditions, and storage conditions. Additionally, the amount of solanine that can be taken before negative side effects occur varies from person to person, depending on body weight.

The European Food Safety Authority agrees that toxic doses of solanine are approximately 1 mg or more of solanine per kilogram of body weight. To put this into perspective, 1 potato contains approximately 0.18 mg/kg of solanine. Therefore, the risk of exposure to this level of solanine is low.

Which vegetables can be eaten raw?

Cooking vegetables, such as potatoes, can significantly improve the taste and texture and reduce the risk of foodborne infections when eaten raw. Basically any vegetable can be eaten raw, even those you may have been enjoying after cooking, such as parsnips, beets, bok choy and kohlrabi. Be aware that a sudden increase in your intake of raw vegetables may cause some uncomfortable gas and bloating as your intestines work harder to digest them.

generalize

If you're feeling adventurous, you can eat a small portion of raw potatoes once in a while, as it's a good source of gut-friendly resistant starch. However, the bitter and starchy taste and potential stomach upset or diarrhea may keep you away from it. Cooked potatoes provide as many nutritional and health benefits as raw potatoes without the risk of unpleasant side effects.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
哪些職業對健康影響最大?科學與現實的分析

哪些職業對健康影響最大?科學與現實的分析

在現代社會中,工作佔據了人們生命中相當大的一部分。然而,不同職業對健康的風險並不相同。一些工作性質或環境,會顯著增加慢性病、心理壓力、甚至縮短壽命的風險。以下從科學研究與醫學角度,探討幾類對健康損害較大的職業,並附上相關統計數據。

電擊槍的機制與對人體健康影響

電擊槍的機制與對人體健康影響

在現代執法中,警察常使用所謂「非致命性武器」(less-lethal weapons),其中最廣為人知的便是 電擊槍(Taser)。電擊槍的設計初衷是提供一種介於徒手制服與槍械之間的選擇,藉由暫時性電擊使嫌疑人失去行動能力,以降低致命暴力發生的風險。然而,電擊槍並非完全無害,背後涉及的電流機制與人體生理反應值得深入探討。

PD-(L)1/VEGF「三抗」:腫瘤免疫治療新方向

PD-(L)1/VEGF「三抗」:腫瘤免疫治療新方向

腫瘤治療的新挑戰 近十年來,免疫檢查點抑制劑(Immune Checkpoint Inhibitors, ICIs)改變咗癌症治療格局。當中 PD-1/PD-L1 抑制劑 已經成為多種腫瘤的一線或二線療法,而 VEGF 抑制劑 亦係抗血管生成治療嘅核心藥物。然而,臨床數據顯示,雖然 PD-(L...
疲勞駕駛的健康風險與新科技防護:REMONY 裝置的認證分析

疲勞駕駛的健康風險與新科技防護:REMONY 裝置的認證分析

疲勞駕駛一直是全球道路安全的重要議題。許多人將疲勞視為「只是累了」,但科學研究表明,當人處於極度疲倦時,大腦功能下降的程度可與酒精中毒相當。不僅如此,長時間駕駛還會對身體健康造成慢性負擔。隨著科技發展,越來越多可穿戴裝置被設計用來協助監測疲勞狀態,其中,日本 Medirom 公司開發的 REMONY 裝置近日獲得國土交通省(MLIT)認證,成為市場矚目的焦點。本文將先探討疲勞駕駛的健康風險,然後客觀分析 REMONY 裝置的技術特點與潛力。

腳跟為何會變黃乾裂?成因與護理全攻略

腳跟為何會變黃乾裂?成因與護理全攻略

腳跟皮膚為何容易出現問題? 腳跟係身體承受最大壓力嘅部位之一。每日行走、站立,腳跟長期摩擦同受壓,如果缺乏適當護理,就會導致角質層過度增厚、乾燥同龜裂。當角質層愈厚,皮膚顏色會慢慢變得偏黃,甚至暗啡。 造成腳跟黃、裂、脫皮的常見原因 角質層增厚長期行走或穿硬底鞋,令腳跟角質層積聚過多,顏色...
Wi-Fi 會唔會對人體有害?科學研究同日常生活影響全解析

Wi-Fi 會唔會對人體有害?科學研究同日常生活影響全解析

Wi-Fi 幾乎已經變成日常生活不可或缺嘅一部分。無論係屋企、公司、學校,甚至咖啡店同巴士,都有無線網絡覆蓋。但好多讀者都會擔心:「成日浸喺 Wi-Fi 入面,會唔會慢慢影響身體健康?會唔會致癌?會唔會令我失眠或者精神差?」 今篇文章會由淺入深,帶大家了解 Wi-Fi 嘅電磁波特性、科學研究結...
長時間保持一個姿勢,點解會痛、僵硬、麻痺?|久坐對身體嘅危害

長時間保持一個姿勢,點解會痛、僵硬、麻痺?|久坐對身體嘅危害

好多人每日要長時間坐喺辦公室、電腦前面,或者瞓覺時維持同一個姿勢。結果往往出現腰酸背痛、手腳麻痺,甚至覺得關節「鎖住」郁唔到。久坐傷身腳麻痺點解長時間坐姿影響健康,都係大家經常搜尋嘅問題。今次我哋就一齊睇下背後原因。

癌症如何擴散:從一個器官走到另一個器官的旅程

癌症如何擴散:從一個器官走到另一個器官的旅程

癌症最令人畏懼的地方,不單在於原發腫瘤本身,而是它能夠 轉移(Metastasis) —— 由原本的器官擴散至身體其他部位。事實上,大多數癌症致命的原因,並非來自腫瘤的「原居地」,而是因為它在其他重要器官(如腦、肝、骨、肺)形成了新的腫瘤。

腦癌種類全面介紹|常見類型與特徵

腦癌種類全面介紹|常見類型與特徵

腦癌(Brain Cancer)泛指源自腦部或蔓延至腦部的惡性腫瘤。臨床上可分為兩大類: 原發性腦腫瘤(Primary Brain Tumors):由腦部細胞本身變異而成。 繼發性腦腫瘤(Secondary / Metastatic Brain Tumors):由其他器官的癌細胞(如肺...