Fish collagen: What to do in the event of an overdose? All about symptoms, treatment and precautions when taking fish collagen

Introduction to fish collagen and its benefits

Fish collagen is one of the most popular marine collagen supplements and has established itself in recent years due to its many health benefits. As a high-quality protein that occurs naturally in skin, bones and connective tissue, collagen provides firmness, elasticity and resilience. Marine collagen is extracted directly from the skin and scales of fish such as salmon or cod and is particularly rich in amino acids such as glycine and proline, which have been proven to boost your body's own collagen synthesis.

You can take fish collagen in powder, capsule or liquid form - depending on your lifestyle and daily routine. In the recommended dosage, it supports your skin health, improves joint function and can increase your general well-being. However, even natural supplements carry risks if they are taken in the wrong dosage. It is therefore essential to know the limits of safe intake and the possible symptoms of an overdose.

What is an overdose of marine collagen?

Overdosing occurs when you regularly consume significantly more fish collagen than the manufacturers or experts recommend. Although marine collagen is generally considered to be very safe, too high a daily dose can overload your metabolism and trigger various undesirable effects.

Why too much collagen can be problematic

Collagen consists of long-chain proteins that are difficult for your body to break down completely if there is an excess. A permanently high protein buffer in the digestive tract can lead to indigestion and discomfort - especially if your body does not have enough gastric juice or enzymes available to break down the extra collagen.

Possible complications of an overdose

✅ Digestive complaints such as bloating, flatulence or diarrhea

✅ Kidney and liver strain if too many amino acids have to be broken down

✅ Imbalance in the amino acid profile, which can affect other metabolic pathways

Even if these symptoms are usually mild, you should take them seriously and adjust your collagen dose accordingly. In the next section, you will learn which warning signs you should be aware of and how best to react if the worst comes to the worst.

Risks and side effects of an overdose of fish collagen

Digestive problems due to too much protein

An excessive intake of fish collagen can overload your digestive system. Collagen peptides are long-chain proteins that your gastrointestinal tract can only break down to a limited extent; this often leads to flatulence, bloating and diarrhea. In individual cases, users also report constipation when the intestinal flora is upset by excess protein.

Kidney and liver stress with long-term overdose

Excess amino acids must be metabolized by the liver and kidneys. A long-term intake of more than 20 g of collagen per day can put a strain on kidney function and increase the risk of kidney damage if the kidneys are already damaged. The liver can also be burdened by increased protein work if enzymes have to constantly replenish it.

Allergic reactions and intolerances

Although rare, allergic reactions to fish collagen are possible, especially in people with existing fish or seafood allergies. Symptoms range from itching and skin rashes to swelling and breathing difficulties that require immediate medical attention.

How much fish collagen is safe?

According to studies and expert opinions, the optimal daily dose of marine collagen is 2.5 g to 10 g of hydrolyzed collagen per day for adults.

Recommendations from clinical studies

A review of clinical studies shows that 2.5 g per day can already improve skin hydration and joint function, while 5 g to 10 g per day is considered the upper limit to avoid side effects. According to Healthline, doses above 15-20 g do not provide any additional benefits and may increase the risk of adverse effects.

Individual factors in the dosage

Age, body weight and health condition influence how much collagen your body needs and can tolerate. If you have kidney disease or other pre-existing conditions, you should consult your doctor to determine an individual, safe dose.

Step-by-step procedure

Start with a low dose of around 2.5 g daily and gradually increase the amount while monitoring your well-being. If you experience symptoms such as indigestion or discomfort, reduce the dose or discontinue the supplement.

Signs and symptoms of an overdose of fish collagen

An overdose of fish collagen can manifest itself through various symptoms. Typical signs are severe abdominal pain, nausea, vomiting and excessive thirst. In some cases, dizziness, tiredness and breathing difficulties may also occur, especially if an allergic reaction is present. If you notice such symptoms after taking marine collagen, it is important to seek medical help immediately.

Treatment of an overdose of marine collagen

Treatment will depend on the severity of the symptoms. Generally, healthcare professionals will focus on relieving symptoms and supporting your body's natural detoxification processes. This can be done through intravenous hydration, medication for gastrointestinal discomfort and measures to treat allergic reactions. It is crucial to follow your doctor's instructions closely to ensure a full recovery.

Precautions and guidelines for the consumption of fish collagen

To minimize the risk of overdosing, you should always follow the manufacturer's dosage instructions and not increase the dose on your own. Taking a higher dose does not necessarily lead to better results and can cause undesirable side effects. If you have known allergies to fish or seafood, it is advisable to avoid fish collagen. Always consult a doctor before taking a new supplement to make sure it is suitable for you.

Plant-based alternatives to fish collagen

If you want to avoid fish collagen due to dietary restrictions or personal preference, there are effective plant-based alternatives that can support collagen production.

Vegan collagen supplements often contain a combination of amino acids such as glycine, proline and lysine as well as vitamin C, which are important for collagen synthesis. These supplements are often based on soy or pulses and are ideal for a vegetarian or vegan diet.

Natural foods to promote collagen production

A balanced diet can naturally support the body's own collagen production. Here are some foods that are particularly helpful:

Citrus fruits

Oranges, lemons and grapefruits are rich in vitamin C, which promotes collagen formation.

Berries

Strawberries, blueberries and raspberries contain antioxidants that protect the skin from free radicals and support collagen synthesis.

Leafy vegetables

Spinach, kale and Swiss chard provide chlorophyll and vitamin C, both of which stimulate collagen production.

Garlic

Rich in sulphur, garlic supports collagen synthesis and protects against collagen breakdown.

Nuts and seeds

Almonds, walnuts, linseed and chia seeds are rich in zinc and vitamin E, which promote skin health and support collagen production.

Tomatoes

Contains lycopene, an antioxidant that protects the skin from UV damage and supports collagen production.

Paprika

Red and yellow peppers in particular are rich in vitamin C and other antioxidants that promote collagen formation.

Conclusion

Fish collagen can be a valuable supplement to promote skin health, joint function and general well-being. However, it is important to be aware of the risks associated with overdosing. By sticking to the recommended dosage, watching out for possible allergic reactions and consulting a doctor in the event of an overdose, you can safely reap the benefits of marine collagen.

Image credits: Joseph Barrientos, Alexander Grey, Towfiqu barbhuiya, Kimia Zarifi on Unsplash