Should You Eat Raw Foods First? Debunking Nutrition Myths - Nutrition

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Should raw food be eaten first?


Hello, nutritionist: I read in a report that it's better to eat "raw foods" or foods rich in enzymes first during meals.
Is this statement correct? Why? Additionally, I've heard that fermented foods like kimchi contain many enzymes, but I've also heard that pickled vegetables can be carcinogenic.
Is kimchi good or bad? Thank you for your response.

Xiao Pingguo, 20~29 year old female. Ask Date: 2003/12/12

Dr. Shi Guimei reply Nutrition


Hello! Pickled products contain many enzymes and may be carcinogenic, with various research reports on this topic.
However, the high salt content in pickled products can have adverse effects on health, so it is recommended to consume them in moderation.
There is no specific recommendation to eat "raw foods" or enzyme-rich foods first, as once food enters the mouth, various digestive enzymes in different parts of the digestive system break down different types of food.
Therefore, there is no need to worry about this issue.
Sincerely, Dietitian Shih Kuei-Mei, Director of the Nutrition Department, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2003/12/12

More Info


When it comes to the question of whether you should eat raw foods first, there are several factors to consider, including the nutritional benefits of raw foods, the role of enzymes, and the potential health risks associated with certain fermented foods like kimchi.

Firstly, the idea that eating raw foods first can be beneficial is rooted in the belief that raw foods retain more nutrients than their cooked counterparts. Cooking can indeed lead to the loss of certain vitamins, particularly water-soluble vitamins like vitamin C and some B vitamins. Raw fruits and vegetables are also rich in fiber, which is essential for digestive health. Eating raw foods first may help to increase your intake of these nutrients and fiber, potentially leading to a feeling of fullness that can help with portion control during meals.

However, the claim that raw foods are inherently better than cooked foods is not entirely accurate. Cooking can enhance the bioavailability of certain nutrients. For example, cooking tomatoes increases the availability of lycopene, a powerful antioxidant. Similarly, cooking carrots can enhance the absorption of beta-carotene. Therefore, a balanced diet should include both raw and cooked foods to maximize nutrient intake.

Regarding enzymes, raw foods are indeed a source of various enzymes that can aid in digestion. However, the human digestive system is quite capable of breaking down food without the need for these enzymes from raw foods. The body produces its own digestive enzymes, and while consuming raw foods may provide some additional enzymes, their impact on overall digestion is minimal for most people.

Now, let's address the concerns surrounding fermented foods like kimchi. Fermented foods are often praised for their probiotic content, which can be beneficial for gut health. Kimchi, a staple in Korean cuisine, is made from fermented vegetables, primarily napa cabbage and radishes, and is rich in vitamins A, B, and C, as well as beneficial bacteria. However, the concern about fermented foods potentially being carcinogenic often stems from the presence of certain compounds that can form during fermentation or from the use of high-sodium ingredients.

The key to enjoying fermented foods like kimchi is moderation. While they can be part of a healthy diet, excessive consumption, especially of high-sodium varieties, can lead to health issues such as hypertension. Additionally, some studies have suggested a link between high consumption of pickled and fermented foods and certain types of cancer, but the evidence is not conclusive. It is essential to balance your diet with a variety of foods, including fresh fruits and vegetables, whole grains, lean proteins, and healthy fats.

In summary, there is no one-size-fits-all answer to whether you should eat raw foods first. A balanced approach that includes both raw and cooked foods, along with a variety of fermented foods in moderation, is likely the best strategy for optimal health. If you have specific health concerns or dietary restrictions, consulting with a registered dietitian or nutritionist can provide personalized guidance tailored to your needs.

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