Whey is the liquid remaining after milk has been curdled and strained. It is a byproduct of the manufacture of cheese or casein and has several commercial uses. Sweet whey is a byproduct resulting from the manufacture of rennet types of hard cheese, like cheddar or Swiss cheese. Acid whey (also known as sour whey) is a byproduct brought out during the making of acid types of dairy products, such as cottage cheese or strained yogurt. Whey proteins consist of α-lactalbumin, β-lactoglobulin, serum albumin, immunoglobulins, and protease peptones.^[rx]

Whey is the remaining liquid after milk is curdled and strained. It is also a byproduct of cheese manufacturing. It comprises β-lactoglobulin, α-lactalbumin, immunoglobulins, serum albumin, and Protease peptones. It is a complete protein that consists of all nine essential amino acids essential for protein synthesis.

Facts of Whey

Whey serves as a foundational supplement and assists to achieve various goals for both women and men. It is easily digestible and required for building muscles and fat loss when combined with a healthy diet and exercise.

It is available in powder form also and is well known as a sports nutrition product due to its cost, availability, and effectiveness. Whey offers a wide range of amino acid L-cysteine that could alleviate deficiencies that occur during insulin? is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes?, aging, and other health problems. There are two types of whey: Acid Whey and Sweet Whey.

1. Acid Whey

Whey results from cheese which adds an acid such as vinegar or lemon juice for the curdling process. Its types of cheeses are lemon cheese, mozzarella, and farmer’s cheese.

2. Sweet Whey

Whey is derived from that is cultured or curdled by not adding acid but with rennet. It could be drained from yogurt, clabbered raw milk, buttermilk, and milk kefir.

History

Whey is a liquid part of milk that remained after making cheese. It has been used for various health reasons for 24 centuries. In 446-337 BC, Hippocrates, a father of medicine prescribed whey to his patients. Another father of medicine named Galen in 131 BC-200BC, advised using whey to his patients. Then it is recommended to use as a substance to improve health in different regions of the world.

In 1794, a patient went to the Swiss mountain village of Gais as he could not be cured by the doctors. There he was provided whey regularly. An intake of whey helped to heal his health condition. The people gathered to Gais in order to get the benefit of whey protein. Soon, a health spa was opened in this village followed by 160 spas across Switzerland, Germany, and Austria. Throughout the 18^th and 19^th centuries, these spas were active in assisting emperors and aristocrats from across Europe.

Health spas of eighteenth-century engaged carefully timed system as the whey being a perishable beverage must be consumed within ten hours. The whey which has been prepared late at night was carried by remote mountain cheese makers to arrive before dawn to spas. Today, the fabrication of whey in the form of powder serves its benefits to everyone,

However, the whey available in the form of the package today is chemically treated and adulterated and lost its healing properties.

Health Benefits of Whey

The health benefits offered by whey are discussed below:

1. Muscles health

Whey protein is a wise choice to add protein to the diet without adding extra calories from fats and carbohydrates. It contains from 80 percent to 90 percent protein that assists the body to build and strengthen muscles. Protein stimulates the synthesis of muscle to a greater degree than both soy protein and casein products. The addition of protein to the diet enhances gains in muscle mass. The results of the study showed an increase in total body mass, thigh mass, fat-free mass, and muscle strength.

2. Helps to burn fat

The examination was made on the effect of whey protein without or with resistance exercise on body composition and body weight. The supplementation lowered body weight and body fat. Significant results were observed on those who combined supplementation of whey protein with resistance exercise.

3. Lower cravings

Whey affects both leptin and ghrelin which are hormones that assist in regulating appetite. Leptin balances energy that suppresses food intake. Ghrelin assists in hunger regulation and has a role in the initiation of the meal. Studies have shown that the circulating levels of leptin are increased and ghrelin levels are decreased in obese patients. Whey helps to balance ghrelin and leptin secretion by lowering hunger cravings and preventing overeating.

Studies concluded that whey protein helps to lower caloric intake. An amino acid found in Whey protein is responsible for influencing satiety. Whey affects satiety and also intake of food which is mediated by the release of ghrelin and satiety promoting hormones. After the consumption of protein, hormones are released in the gastrointestinal system that suppresses food intake when supplementing with whey protein.

4. Maintain a level of blood sugar

Whey stabilizes the level of blood sugar when consumed before meals with a high glycemic index. It promotes insulin? production and also prevents spikes in blood sugar levels. Research shows that whey protein is also used for managing symptoms of diabetes?. It slows down gastric emptying, promotes insulin and gut hormones such as incretin which releases after one consumes and assists to lower the level of blood glucose. Naturally, it could lower the level of blood sugar when eaten before a meal.

5. Energy production

Whey protein promotes glycogen which is an energy source during heavy activity and exercise. It promotes the leptin effect which is a hormone affecting energy balance. Moreover, whey is digested easily and absorbed by the body. It is also converted into energy and assists to enhance energy levels naturally.

6. Promotes Glutathione

Whey promotes glutathione production which is an antioxidant found in everybody’s cells. Glutathione scavenges free radicals which damage cells, cause aging-associated diseases such as Alzheimer’s, Parkinson’s, and also cancer. It prevents the body from drug resistance and environmental toxins.

7. Strengthen immune system

Whey protein enhances glutathione synthesis and enhances the immune system. Glutathione promotes the efficacy of antioxidants such as CoQ10, vitamin C, ALA, and Vitamin E. It possesses various proteins and vitamins such as Vitamin D which has a positive effect on the immune system and acts as antimicrobial activity. Not only it promotes glutathione production but also it possesses L-lysine and L-arginine, amino acids which enhance immune function.

8. Healthy heart

Studies have shown that whey enhances lowering blood pressure, arterial stiffness? and promotes lipid profiles. It lowers cardiovascular risk factors by protecting muscle health and assists to lose weight. Low body weight reduces the problems related to obesity such as heart diseases.

9. Long life

Whey promotes life span by lowering muscle wasting which is related with again and promoting absorption of nutrients without promoting hunger. As people age, one loses bone mass, digestive function and cell function also decreases. It also slows down the aging process. Study shows that supplements of whey protein caused positive effects on muscle protein synthesis, muscle strength, and muscle mass. It also improves muscle health; maintains weight, energy and supports cardiovascular function in elderly people.

How to Eat         

• Use it as an additive in processed foods such as crackers, pieces of bread, and pastry.
• It is used as a flour conditioner or substitute for skim milk in pancakes and muffins.
• It is also consumed as a drink.
• Use it in making brown cheeses and ricotta.
• Whey is also used as a substitute for water to knead dough or soaking rice or legumes.
• Add whey water to dals to promote protein content.
• Use it as a base for soups.
• Whey is used in lacto-ferment vegetables, sauerkraut, condiments, chutneys, and jams.
• It is used to soak grains. Add it to grain and legume preparations to make it digestible.
• Use it to cook pasta, oatmeal, potatoes, and rice.
• Add it to stews and soups.
• Whey could be added to fruit smoothies and milkshakes.
• Use whey to thicken gravies.
• Make a cocktail with half juice, half whey, honey, or stevia.
• Make whey lemonade from it.
• Use it to soak whole wheat flour.
• Whey is also used to boil noodles.
• Whey is used chicken broth as a substitute for wine.
• It is used to cook quinoa.
• Soak nuts in whey to assist digestion.
• Cook oatmeal in whey by adding some fruit.
• Add it to protein shakes.
• Whey is used to make applesauce.

Side effects

1. Gain fat

Whey protein might have added sugars, carbohydrates, and fat. Too much consumption of whey protein adds carbohydrates and calories in liquid form but may not satisfy meal replacement. One should consider the terms carbohydrates, fat, and calories.

2. Formation of Kidney stones

Too much intake of protein causes kidney stones. Whey does not prevent it but worsens the existing condition. One should consume an adequate amount of fiber and water to maintain the body and prevent deposits buildup that results in kidney stones.

3. Digestive issues

Being a dietary source, whey possesses lactose that could end up in digestive problems. People having problems with whey protein experience similar signs from other dairy products such as cheese, milk, and ice cream.

4. Chances of Gout

Whey protein contains protein and amino acids in large amounts. If the body is not able to process then it builds up in the system and also causes liver problems and other organs to filter these substances.

How to store?

Put whey in a jar and cover it tightly with a lid. Place it in the refrigerator. Also, vacuum bags or airtight plastic containers could be used to store whey. Using vacuum bags, remove air from the bag before tightening the seal and placing it in the refrigerator. It ensures whey for more than six months.

References