Additives: normal salt, sugar, ........
Carbohydrates, Protiens, fats, vitamins,minerals and water are the most essential food substances.
carbohydrates
Methionine
they have to get food from the leaves
The body cannot manufacture the following substances that food provides - vitamins minerals proteins fat carbohydrate water
Substances that are added to a food for making items
food additives
Food additives is what substances that are intentionally added to food to produce a desired effect. The additives are used to enhance the taste and appearance and is added to preserve flavor.
Substances purposely added during manufacturing to food products.
Water molecules are added
water
Food additives are substances added to food to preserve flavor or enhance its taste and appearance, for example food acids like vinegar, emulsifiers used in ice cream or homogenised milk etc...
The FDA does not require food labels on fruit because there is no added substances.
For example, fruit and vegetables are considered nutrient-dense food, while highly refined products containing added sugars.
Food preservatives are substances 'that are added to food items in order to inhibit, retard or arrest the process of fermentation, acidification, and decomposition of food items'. Or, in other words, preservatives in food help keep the food safe, without spoiling, for longer.
it depends on the substance
food substances to contain nucleic acids