Nutrition Point 小編・Jul 14,2021

感冒營養小知識

感冒營養小知識

在這一年間,市民對健康的意識大大提高,除了外在的保護,我們也須注重內在的健康。感冒被譽為頭號的流行性疾病,當我們的免疫你降低時,病魔便會找上門來。為了讓大家有一個更健康的身體,這篇文章將會以營養學的角度跟大家分享一些預防感冒的方法。

Quick Answer

Nutrition Point 指出,預防感冒可透過攝取多種營養素來增強免疫力。文章強調,充足的水分有助於排出痰和鼻涕,而乳酪中的益生菌則能促進腸道健康,顯著提升免疫功能。此外,維他命C和類黃酮(如橙、奇異果和彩椒中含有)能抗炎並抑制自由基,而蒜頭中的大蒜素則具有天然抗生素的功效,有助於抵抗感冒。

首先,能對抗感冒的主要機制為水,在免疫系統對抗病菌時,我們的身體會產生痰和鼻涕,若我們身體缺水時,便會阻撓這些物質的排出。所以增加水份攝取才能夠排出鼻涕和他,同時也能補充蒸發的水份。

食用乳酪幫助我們保持消化系統健康,有效預防疾病。因為乳酪含有大量的益生菌族群,這能幫助我們的腸道蠕動和增加腸道益菌的數量,大大地增強我們的免疫能力來對抗感冒。另一方面,進食乳酪製品能更可以幫我們作體重管理。

我們也可選擇食用一些含有豐富維他命C的食物,例如橙、奇異果等。以橙為例,它也含有豐富的類黃酮 (flavonoids),能幫助我們身體細胞再生和保持健康及強壯。有研究指出,類黃酮可防止發炎和抑制自由基,它與維他命C合併使用時,抗病毒的功效也會較佳。在蔬菜方面,彩椒也含有豐富的維他命C和類黃酮,也能夠增強我們的免疫系統,預防感冒。

相信在我們小時候,當我們晚上感冒時,家人都會叫我們都去食一些蒜頭,而這個說法其實是有科學根據的。由於蒜頭含有大蒜素 (allicin),這種天然的抗生素(antibiotics)能幫助預防感冒。一般來說,我們可用蒜頭在調味製作佳餚,這不但能提升食物的味道,也可以預防感冒,例如可唔可以用蒜頭來炒牛肉。由於牛肉含有大量的蛋白質、鋅(zinc)和硒(selenium),不但能為身體帶來足夠的營養之外,也可以出盡我們的免疫能力,防止細菌和病毒的入侵。

在疫情期間,我們更應注重我們的身體健康,除了運用以上的營養知識外,也需給予身體休息的時間,才能抵抗病魔入侵。

參考資料

Cook, J. D., & Monsen, E. R. (1977). Vitamin C, the common cold, and iron absorption. The American journal of clinical nutrition, 30(2), 235-241.

Eccles, R. (2005). Understanding the symptoms of the common cold and influenza. The Lancet infectious diseases, 5(11), 718-725.

Lissiman, E., Bhasale, A. L., & Cohen, M. (2014). Garlic for the common cold. Cochrane Database of Systematic Reviews, (11).

Ørskov, H., & Flyvbjerg, A. (2000). Selenium and human health. The Lancet, 356(9233), 942-943.

Pauling, L. (1971). Vitamin C and common cold. Jama, 216(2), 332-332.

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Frequently Asked Questions

1 What are the key nutrients and foods recommended for preventing common colds?

The article highlights the importance of water, probiotics from yogurt, Vitamin C and flavonoids from fruits like oranges and kiwi, and vegetables like bell peppers. Additionally, allicin from garlic and protein, zinc, and selenium from beef are mentioned for boosting immunity.

2 How does hydration contribute to preventing colds?

The page explains that water is a primary mechanism for fighting colds. Adequate hydration helps the immune system by facilitating the expulsion of phlegm and nasal discharge, which can be hindered by dehydration. It also replenishes fluids lost through evaporation.

3 What role do probiotics play in immune health according to the article?

The article states that consuming yogurt, rich in probiotic bacteria, helps maintain a healthy digestive system. This promotes gut motility and increases beneficial gut bacteria, significantly enhancing the body's immune capacity to fight off colds.

4 Besides nutrition, what other factor is crucial for resisting illness?

The article emphasizes that in addition to applying nutritional knowledge, it is essential to give the body sufficient rest. Adequate rest, combined with proper nutrition, is necessary to effectively resist the invasion of pathogens.