True kelps belong to the genus laminaria, family Laminariaceae. Giant kelps belong to the genus macrocystis, family Lessoniaceae. Bladder kelps belong to the genus nereocystis, family Lessoniaceae. Kelp needs sunlight as an energy source.
It also needs a hard surface not sand on which to grow. Kelp grows quickly. In fact, giant kelp is one of the world's fastest growing plants. It grows as much as feet meters in a single year.
Kelp contains iodine. This provides the trace element for your thyroid hormone. Kelp is a food staple. Tiffany La Forge is a professional chef, recipe developer, and food writer who runs the blog Parsnips and Pastries.
Her blog focuses on real food for a balanced life, seasonal recipes, and approachable health advice. Visit her at her blog or on Instagram. One-third of people are at risk of iodine deficiency. These 9 iodine-rich foods can help keep you healthy. Some foods can reduce appetite, cravings and help you burn more calories. These are the 19 most weight loss friendly foods on the planet.
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This article covers 5 lemon verbena uses and potential benefits. Dark leaves, clear lungs? Learn more about the potential benefits of English ivy as well as some possible downsides and how to use it. It is essential to take only the RDA of iodine rather than consuming kelp in high amounts. As with any supplements, it's definitely best to consult a doctor before taking any; especially if pregnant, breastfeeding or suffering from any ailments. Kelp supplements come in powered and supplement form, and the powdered form is better absorbed in your body, so she suggests that rather than supplementing with kelp, using kelp powder and sea salt to flavour foods.
Working with a registered nutritionist, such as Hamilton, can also help to identify whether you are iodine deficient, and if so, supplement accordingly. The recommended daily amount of iodine for men and non-pregnant women is micrograms, and any kelp supplements with more than micrograms should be avoided. Fish, seafood, eggs and dairy products are excellent sources of iodine as well, so if you are vegan, adding kelp to your diet may help keep your iodine at optimal levels.
Like this article? Sign up to our newsletter to get more articles like this delivered straight to your inbox. Type keyword s to search. Today's Top Stories. Britney's conservatorship has ended after 13 years. Paris' wedding dress is what dreams are made of. Meghan on the money saving trick she still uses. In addition, seaweed supplements and algae extracts, including the brown seaweed Laminaria, reduced colon, breast, and prostate cancer activity [ 40 , 41 , 42 , 43 ].
Fucoidan injections or fucoidan, when given in food, slowed tumor growth in mice. Fucoidan killed cancer cells by activating the immune system via natural killer cells [ 40 , 44 ]. Fucoidan reduced the growth of leukemia cells and killed 2 out of 4 lines tested in a study.
In another study in cells and mice, fucoidan stopped the growth and spread of lung cancer cells by blocking growth pathways Akt — mTOR and NF-kB [ 45 , 44 ]. In a study of 15 patients with chronic hepatitis C, fucoidan from brown seaweed was used to treat virus-related liver diseases. After 8 to 10 months of treatment, hepatitis C virus HCV levels in the blood significantly decreased [ 46 ].
Additionally, this study also examined alanine aminotransferase levels, a protein whose presence correlates to a more severe HCV infection. The blood tests also present a decrease in alanine aminotransferase levels. Despite the positive laboratory findings, these results did not lead to significant clinical improvements [ 46 , 47 ].
No clinical evidence supports the use of kelp for any of the conditions listed in this section. Below is a summary of the existing animal and cell-based research, which should guide further investigational efforts.
However, the studies listed should not be interpreted as supportive of any health benefit. In a rat model, fucoidan present in kelp was used to reduce inflammation caused by immune cells in the brain. Fucoidan improved animal behavior, reduced harmful compounds TNF-alpha , prevented neuron loss, and protected the cells from damage reducing reactive oxygen species that can cause neurodegeneration [ 48 , 49 , 50 ].
In a brain and spinal cord cell study, fucoidan reduced inflammation blocking nitric oxide NO and prostaglandin E2 production. Fucoidan reduced all important actors in the inflammatory cascade in cell studies. In brain immune cells microglia fucoidan from brown seaweed showed promise for treating neurodegenerative diseases caused by inflammation [ 6 , 56 , 57 ]. Fucoidan blocked the growth of the herpes simplex virus type 1 HSV-1 in infected mice.
Mice given fucoidan had better survival rates. The treatment improved immune response innate and adaptive , increasing antibody production [ 58 ]. It also protected from toxins, helping the cells avoid death via hydrogen peroxide and caspase-3 [ 59 , 60 , 61 , 62 ].
In a rabbit model, fucoidan helped create new vessels, essential for communication with bones and bone repair. It also partially improved bone growth in rabbits with defects in skull formation [ 63 ]. In human stem cells, fucoidan boosted the development of cells that build bones , called osteoblasts.
Fucoidan also increased the growth of new vessels, improving communication with bones [ 63 , 64 ]. In another cell study, fucoidan increased proteins that promote bone and mineral formation via BMP-2 , osteocalcin , and ALP.
Fucoidan given to aged female mice increased bone density and weight suggesting that fucoidan may play a role in treating age-related bone loss [ 65 , 66 , 67 , 68 ]. Ten protein extracts from a particular sea kelp wakame were given to rats with high blood pressure. Of the 10 extracts, 4 experienced decreased blood pressure after both a single dose and routine use [ 69 ].
In a cell study, 5 organic brown seaweed kelp extracts blocked an important enzyme that may contribute to high blood pressure Angiotensin-converting Enzyme, ACE. This enzyme is often a target for blood pressure-lowering drugs [ 70 , 71 ]. Kelp reduced the weight of liver and fat tissue, glucose, and fats cholesterol and fatty acids in the blood. It increased the activity of a protein that breaks down fatty acids lipoprotein lipase , dissolving the plaque in arteries [ 72 ].
The antioxidant properties of fucoidan from kelp were confirmed in a cell study that tested its 2 major components, sulfate and fucose. Fucoidan showed antioxidant effects and has the potential to be used as a natural antioxidant [ 7 ]. This list does not cover all possible side effects. Contact your doctor or pharmacist if you notice any other side effects.
Call your doctor for medical advice about side effects. In Canada, you may report side effects to Health Canada at A year-old woman with no history of thyroid disease experienced an extended period of thyroid hyperactivity hyperthyroidism shortly after beginning a kelp-containing diet. This later developed into low thyroid activity hypothyroidism caused by the excess iodine in the seaweed [ 73 , 74 , 75 , 76 ]. A year-old woman presented with a case of hyperthyroidism after drinking a kelp-containing herbal tea.
The tea consumption led to the formation of a goiter, an abnormal enlargement of the thyroid gland [ 77 , 74 ]. Similarly, a year-old woman developed liver damage hepatotoxicity after drinking an herbal tea that contained kelp 3 times a day over 2 months.
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