Kelp Side Effects

Kelp is a type of brown algae, widely found in the cool temperate coastal waters. This brown algae of the order Laminariales can grow quite rapidly to an enormous size, to create kelp forest in the depth of the ocean. It is a source of food and shelter to numerous marine organisms, which makes it an important part of the marine ecosystem.

Extensive research on this seaweed have revealed that, it is an immensely rich source of several important vitamins and minerals, for which it is increasingly incorporated in various nutritional supplements. However, an overdose can sometimes, produce certain adverse reactions, if used excessively.

» One of the side effects is thyroid imbalance, which can be attributed to its high iodine content. Though iodine is required for smooth functioning of the thyroid gland, excessive amount of this mineral can cause hyperthyroidism. Overdose of iodine can sometimes lead to reduced fertility in women.

» An overdose can lead to gastrointestinal problems like nausea and diarrhea, as kelp is a natural laxative.

» Prolonged use of this brown algae can also lead to a reduction in the ability of the body to absorb certain vital nutrients like iron, sodium and potassium.

» Additionally, it has been observed that the intake of extracts or supplements can lower the level of blood sugar, hence people who take medications for lowering blood sugar are advised to take precaution while taking this supplement.

» Since this algae has blood thinning properties, it can raise the risk of bleeding. So people with bleeding disorders, as well as those taking anticoagulant drugs like aspirin, should not use its supplements without informing their health care provider.

» Some people can be allergic to this algae and hence, consumption of this seaweed and its supplements can produce allergic reactions in them. Such allergic reactions or side effects can manifest in itching, skin rash, hives, watery or itchy eyes, runny nose, and shortness of breath.

» Some other adverse reactions can result from the contamination of this algae with toxic and heavy metals like arsenic, as the oceans are getting increasingly polluted with such toxic metals. Arsenic toxicity is linked to nausea, headaches, dizziness, and in rare cases, it may also result in skin pigmentation, memory loss, vitamin A deficiency, and kidney and liver problems.

» Kelp is widely consumed in Japan, Hawaii and Alaska. It is a significant source of vitamins A, B, C, D, E, K, and folic acid.

» It is incredibly rich in iodine, which is required for the normal functioning of the thyroid gland. Therefore, it can prove beneficial for conditions like goiter, hypothyroidism, and cretinism.

» It is also abundant in many other important minerals including potassium, phosphorus, magnesium, iron, zinc, selenium, and calcium.

» It can boost the immune system, improve liver functions, regulate blood pressure and the functions of the pituitary gland, lower the level of cholesterol in blood, control appetite to help lose weight, and maintain pancreas and prostate health.

» It prevents the growth of tumors and maintains the pH balance of the body.

There are basically three species of kelp, that are mainly harvested to prepare extracts and supplements, that are available in the form of tablets, pills or powder. These species are bladderwrack, laminaria and rockweed.

If used in moderation, it can provide significant health benefits. But, considering all the side effects, it is imperative to consult a physician or health care professional before taking it for medicinal purposes. Pregnant or breastfeeding women are usually advised to avoid kelp or its supplements.

Disclaimer: This story is for informative purposes only, and should not be used as a replacement for expert medical advice.