Water spinach
Water spinach is often grown in water-based environments. If the water source is polluted, the vegetable will absorb toxic substances such as lead, mercury, cadimi and toxic chemicals from polluted water sources. Eating water spinach from areas or water sources that are not guaranteed can expose the body to these toxins, causing damage to the nervous system, kidneys and other internal organs.
Water spinach, if not washed thoroughly or not processed properly (such as eating raw), can contain parasites and pathogenic bacteria such as E. coli, Salmonella, or leafless congestion. These bacteria and parasites can cause food poisoning, digestive disorders and serious health problems.
During the planting process, some manufacturers use pesticides to prevent pests and diseases. If water spinach is not washed or there is no strict control process for pesticides, consuming this vegetable can expose the body to pesticide residues, causing negative effects on health, especially the nervous system and digestive system.
Asparagus
Asparagus contains a compound called cyanogenic glycoside, which can be converted into cyanide (toxine) if not properly treated. Cyanide can cause poisoning and seriously affect the nervous system and organs in the body. However, if asparagus is cooked thoroughly, this compound will be destroyed and not harmful. Therefore, asparagus needs to be processed properly, avoid eating it raw or cooking it for too little time.
Like many other vegetables, asparagus can be sprayed with pesticides during planting. If not washed or processed thoroughly, pesticide residues can be harmful to health, especially for people with weak immune systems or sensitivity to chemicals.
Asparagus is high in fiber, however, eating too much can cause digestive problems such as bloating, flatulence or indigestion. In particular, people with sensitive digestive systems or stomach diseases will be susceptible to these problems.
Carrots
Carrots are rich in beta-carotene, a precursor to vitamin A. Although the body has the ability to convert beta-carotene into vitamin A, if you eat too many carrots (or other foods rich in beta-carotene), the body can accumulate too much vitamin A, causing vitamin A toxicity. This can lead to symptoms such as headaches, nausea, fatigue, and even liver damage. However, this phenomenon rarely occurs if you eat carrots in moderation.
Although carrots are rich in nutrients, they also have a fairly high natural sugar (carbohydrate) content, especially when eaten raw or in juices. If you have problems with blood sugar (such as diabetes), consuming too many carrots can cause a sudden increase in blood sugar levels, affecting disease control.
Carrots also contain a large amount of potassium, a mineral necessary for the body. However, eating too many carrots (especially when eaten uncontrollably for a long time) can lead to too high a potassium level in the blood, causing hyperkalemia, affecting the function of the heart and other organs in the body. This is an issue to note for people with kidney disease or cardiovascular problems.
