Whey protein
Whey protein is one of the primary proteins found in dairy products. It is a byproduct of cheese-making, and it provides essential amino acids that are needed to carry out the functions that proteins perform in the body.
Whey protein can be added to liquids or food items such as applesauce or blended with fresh fruit to make a smoothie.
People use whey protein to improve athletic performance and address nutritional deficiencies or problems.
Evidence
Studies that use whey protein show that it has specific benefits for certain conditions and activities.
- Exercise training.Some studies suggest that taking whey protein as part of a strength training program can increase muscle mass and strength. Other studies do not find any benefits. However, whey protein might help speed muscle recovery after intense exercise.
- Malnutrition.Whey protein might help people gain weight if they are having trouble doing so, such as older adults or people with HIV/AIDS.
- Wound healing.Whey protein has been shown to be beneficial to people recovering from burns and those with chronic wounds.
- Allergies. The hydrolyzed formula includes protein that has been broken down into smaller sizes than are found in cow's milk or soy-based formulas. Research shows that infants who consume a hydrolyzed form of whey protein have a lower risk of developing atopic dermatitis (eczema) than do infants who consume a cow's milk or soy-based formula. Formula for infants containing whey hydrolysate appears to reduce the risk of allergic reactions in infants who are at risk of developing an allergy.
Our take
Generally safe
Most people can get enough protein from a varied diet. If you're having trouble meeting your daily protein needs because of a medical condition, ask your doctor if whey protein might be helpful. Do not use whey protein if you have a dairy allergy.
Safety and side effects
Some research suggests that whey protein might cause digestive discomfort, but in appropriate amounts it appears to be safe.
There is limited information on the possible side effects of high protein intake from food and supplements.
If you have an allergy or sensitivity to dairy products, do not use whey protein.
Interactions
Possible interactions include:
- Albendazole is a medication used to treat parasitic worms.Do not take whey protein while taking this parasite-killing drug. The supplement might delay or halt the drug's effects.
- Alendronate (Fosamax).Using whey protein together with this drug might decrease the absorption of the drug.
- Certain antibiotics.Using whey protein while taking quinolone or tetracycline antibiotics might decrease the amount of the drug that is absorbed.