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The Pros and Cons of Collagen Drinks and Supplements

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Collagen is a structural protein that plays a crucial role in maintaining the elasticity and firmness of our skin, hair, and nails. As we age, our bodies produce less collagen, which leads to visible signs of aging, such as wrinkles and sagging skin. This is where collagen supplements and drinks come in.

Collagen supplements and drinks are becoming increasingly popular among people looking to improve their skin's appearance and promote overall wellness. These products can be made from various sources, including animal bones and fish scales, and are available in different forms, such as pills, powders, and liquids.

One of the main benefits of collagen supplements and drinks is their ability to promote skin health. Collagen has been shown to increase skin moisture, elasticity, and thickness, reducing the appearance of fine lines and wrinkles. Additionally, collagen supplements and drinks can help protect the skin from sun damage and improve the skin's overall texture and tone.

What are Collagen Supplements and Drinks?

Collagen supplements and drinks are products that contain concentrated amounts of collagen protein, which is essential for maintaining healthy skin, hair, nails, bones, and joints. These supplements can be made from various sources, including animal bones and fish scales, and are available in different forms, such as pills, powders, and liquids.

Collagen drinks are a relatively new addition to the market, but they are gaining popularity due to their convenience and potential health benefits. These drinks typically contain collagen peptides, which have been broken down into smaller pieces that are more easily absorbed by the body. Collagen drinks come in a range of flavors and can be enjoyed either hot or cold.

Collagen supplements, on the other hand, come in various forms, including pills, powders, and capsules. They are a convenient and easy way to add collagen to your diet. Collagen supplements can have different sources, including marine collagen, bovine collagen, porcine collagen, and chicken collagen.

While most collagen supplements and drinks contain hydrolyzed collagen peptides, some products also include other beneficial ingredients, like vitamins, antioxidants, and minerals. These additional ingredients can offer additional health benefits beyond those of collagen alone.

How Do Collagen Supplements and Drinks Work?

Collagen is a vital protein that the body produces naturally but decreases as we age. Collagen is essential for many aspects of our physical health, from providing structure to the skin to supporting the strength and flexibility of our joints and bones.

Collagen supplements and drinks work by providing the body with concentrated amounts of collagen protein to support these functions. When collagen is consumed, it is broken down into smaller peptides, which can be more easily absorbed by the body.

How Collagen is Absorbed and Used in the Body

During digestion, collagen is broken down into its constituent amino acids and absorbed by the small intestine. These amino acids are then transported throughout the body to where they are needed.

The body uses these amino acids to form new collagen protein, which is used to support the body's physical structures. Collagen is an essential component of the skin, bones, joints, and muscles, so getting enough collagen is essential for maintaining overall health.

The Science behind Collagen Supplements and Drinks

Collagen supplements and drinks contain collagen derived from sources such as animal bones and fish scales. These sources are processed into hydrolyzed collagen, which is more easily absorbed by the body.

Hydrolyzed collagen consists of shorter chains of amino acids, called peptides, which can pass through the intestinal wall and enter the bloodstream more easily than whole collagen proteins. Once in the bloodstream, they are carried to the tissues that need collagen.

While research on the efficacy of collagen supplements and drinks is limited, some studies suggest that they can help improve skin elasticity, reduce the appearance of wrinkles, and promote healthy bones and joints.

One study found that participants who took collagen supplements for eight weeks noticed improved skin elasticity and hydration compared to those who took a placebo. Another study found that women who took a collagen supplement decreased their joint pain and stiffness.

Are Collagen Supplements and Drinks Safe?

Collagen is generally safe for most people to consume, but there are some potential side effects to be aware of.

Possible Side Effects of Collagen Supplements and Drinks

Some common side effects of collagen supplements and drinks include:

  • Upset stomach or nausea
  • Feeling full or bloated
  • Bad taste in the mouth
  • Constipation

In rare cases, some people may also experience an allergic reaction to collagen. Symptoms of an allergic reaction may include itching, hives, difficulty breathing, or swelling of the face, tongue, or throat.

Risks and Concerns Associated with Collagen Supplements and Drinks

While collagen supplements and drinks are generally safe, there are some risks and concerns associated with their use.

  • Contamination: Some collagen supplements and drinks may be contaminated with heavy metals or other harmful substances, particularly if they are sourced from animals that were raised in polluted areas.
  • Interference with medications: Collagen supplements may interfere with certain medications, such as blood thinners or drugs that lower blood sugar levels.
  • Overconsumption: Consuming too much collagen over a long period of time may lead to the accumulation of certain amino acids in the body, which can cause health problems.
  • False claims: Some collagen supplement manufacturers make false or unproven claims about the health benefits of their products, which can mislead consumers.

It's important to buy collagen supplements and drinks from reputable manufacturers and to speak with a healthcare provider before incorporating them into your diet. If you experience any adverse symptoms after taking collagen, discontinue use immediately and seek medical attention if necessary.

How to Choose the Right Collagen Supplement or Drink

With so many collagen products on the market, it can be overwhelming to choose the right one for your needs. Here are some important factors to consider when making your selection.

Factors to Consider When Choosing Collagen Supplements or Drinks

  • Collagen type: There are multiple types of collagen, each with different benefits. Type I collagen is the most common in the body and is typically used for skin health, while Type II is found in cartilage and is often used for joint health.
  • Source: Collagen can be sourced from animal or marine sources. Most collagen supplements are derived from bovine or marine sources, but you can also find options sourced from chicken or pork.
  • Form: Collagen supplements come in a variety of forms, including powders, pills, and pre-made drinks. Consider which form is most convenient for you and fits your lifestyle.
  • Ingredients: Check the ingredient label for any additional additives or fillers that may be included. Opt for products with minimal ingredients and avoid those with added sugars or artificial flavors.
  • Quality and Purity: Look for products that have undergone third-party testing and are free from harmful contaminants or heavy metals.
  • Price: Collagen supplements can vary greatly in price, so consider your budget and compare prices across different brands and types.

Tips for Picking the Right Collagen Product for Your Needs

  • Research different brands and types of collagen supplements to determine which may be best suited for your needs.
  • Read customer reviews and ratings to see what others have experienced with the product.
  • Choose products that have undergone third-party testing for safety and purity.
  • If possible, speak with a healthcare provider or nutritionist to get personalized recommendations for your specific health goals.
  • Try different types and forms of collagen to find one that works best for you and fits your lifestyle.

Remember, collagen supplements and drinks may not be suitable for everyone. Always speak with a healthcare provider before incorporating them into your diet, especially if you have any underlying health conditions or are taking any medications.


Collagen drinks and supplements have become increasingly popular in recent years due to their potential health benefits. Collagen is an essential protein that plays a vital role in skin, joint, and gut health. While more research is needed on the efficacy of collagen supplements, many people use them to support their overall wellness.

  • Benefits: Collagen supplements and drinks may improve skin health, joint health, gut health, and may help with weight management.
  • Safety: Collagen is generally safe for most people, but some individuals may experience side effects such as gastrointestinal discomfort or an allergic reaction.
  • Efficacy: While more research is needed, some studies have shown promising results in the use of collagen for certain health conditions, such as arthritis and skin aging.

If you are considering incorporating collagen into your diet, there are a few things to keep in mind.

  • Choose high-quality collagen supplements or drinks that are free from harmful contaminants and heavy metals.
  • Speak with a healthcare provider before adding collagen to your diet, especially if you have any underlying health conditions or are taking any medications.
  • Consider incorporating other healthy habits into your routine, such as staying hydrated and eating a balanced diet, to support overall wellness.
  • Remember that collagen supplements and drinks should not replace a healthy lifestyle, but rather serve as a complement to your existing routine.

Overall, collagen drinks and supplements have the potential to offer a range of health benefits and can be a valuable addition to your wellness routine. With the proper research and guidance, you can choose a collagen product that best fits your needs and goals.

William H. McDaniel, MD

Dr. Robert H. Shmerling is the former clinical chief of the division of rheumatology at Beth Israel Deaconess Medical Center (BIDMC), and is a current member of the corresponding faculty in medicine at Harvard Medical School.

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