Whole wheat flakes
Whole wheat flakes are made from whole grains of wheat (Triticum spp., family Poaceae), generally subjected to cooking or steam treatment and then rolled into their characteristic flattened shape.
The term “whole” indicates that the main components of the grain are retained: bran, endosperm, and germ. Compared with refined cereal products, they therefore retain higher amounts of dietary fibre, vitamins, minerals, and bioactive compounds.
They consist mainly of complex carbohydrates, especially starch, together with a moderate amount of plant protein and a relatively low fat content.
Their fibre fraction consists primarily of insoluble fibre, characteristic of wheat bran, which contributes to normal bowel function. Smaller amounts of soluble fibre are also present.
Whole wheat flakes naturally provide several micronutrients, including magnesium, phosphorus, manganese, iron, zinc, and B vitamins, although the actual amounts vary according to wheat variety and processing.
The wheat germ also provides vitamin E, unsaturated fatty acids, and phenolic compounds. Processing the grain into flakes makes it easier to use and generally reduces preparation time.
Like other whole grains, they naturally contain phytic acid, which may partly reduce the absorption of certain minerals. Soaking, fermentation, and cooking can reduce its level to some extent.
Calories
Whole wheat flakes generally provide approximately 330–360 kcal per 100 g.
The actual value may vary depending on the manufacturer, degree of processing, and the presence of any additional ingredients.
A normal serving is considerably smaller than 100 g, so the actual energy intake depends on portion size and on the foods eaten with the flakes.
Uses in Food
Whole wheat flakes are mainly used in breakfast cereals, muesli, porridge, and whole-grain cereal blends.
They can be eaten with milk, yogurt, or plant-based drinks, often combined with fresh fruit, dried fruit, nuts, and seeds.
They are also used in cereal bars, biscuits, bread, crackers, baked goods, and snacks.
They can be incorporated into doughs to increase the content of whole grains and fibre, or used as a structural or decorative ingredient on the surface of breads and other baked products.
After cooking or soaking, they can also be used in savoury preparations such as soups, vegetable patties, fillings, and grain-and-vegetable dishes.
Because the whole grain is retained, they are generally richer in fibre and micronutrients than comparable products made only from refined wheat.
Uses in Cosmetics
Wheat and wheat-derived ingredients are also used in cosmetics, although food-grade whole wheat flakes themselves are not normally used directly as cosmetic ingredients.
Wheat can be processed into hydrolyzed wheat proteins, wheat starch, extracts, wheat germ oil, and other derivatives.
Hydrolyzed wheat proteins may be found in shampoos, conditioners, hair masks, and conditioning products, where they can contribute film-forming and conditioning properties.
Wheat germ oil is mainly used as an emollient ingredient in creams, body oils, balms, and products for dry skin, due to its lipid content and vitamin E.
Wheat extracts and derivatives may also be included in cleansers and skin-care formulations.
Food-grade whole wheat flakes should not, however, be considered equivalent to standardized cosmetic extracts, proteins, or oils.
Allergens
Wheat is one of the major food allergens that must be declared on food labels in the European Union and the United Kingdom.
Whole wheat flakes contain gluten and are therefore not suitable for people with coeliac disease.
They may also cause reactions in individuals with wheat allergy.
Wheat allergy should be distinguished from coeliac disease and from other forms of individual sensitivity, as these are different conditions.
Commercial cereal blends and muesli products may also contain or come into contact with other allergens, depending on their formulation and manufacturing process.
Evaluation
A useful whole-grain cereal ingredient providing complex carbohydrates, fibre, plant protein, B vitamins, and minerals. Retaining the bran and germ generally gives it a more complete nutritional profile than refined wheat products.
Ingredient verdict: a good whole-grain cereal ingredient and a useful source of complex carbohydrates and fibre; however, its gluten content makes it unsuitable for people with coeliac disease or specific wheat allergy.
Cons: contains gluten; not suitable for people with coeliac disease or wheat allergy
