Kelp is a large brown marine seaweed (Laminaria or Ascophyllum nodosum) that grows naturally in the cold waters of the North Atlantic and Pacific. It is one of the most concentrated natural sources of bioavailable iodine — a mineral essential for the synthesis of thyroid hormones (T3 and T4). Kelp also contains fucoidan (a polysaccharide with immunomodulatory properties), alginate (soluble fibre) and natural marine trace elements (magnesium, calcium, potassium, manganese).
Kelp is indeed one of the richest dietary sources of iodine — but this is also a risk if poorly dosed. Iodine is essential to the thyroid but in excess can paradoxically inhibit hormone synthesis (Wolff-Chaikoff effect) or trigger/worsen autoimmune thyroid diseases (Hashimoto's, Graves'). The recommended daily intake is 150 µg/day (adults), with an upper limit of 600 µg/day set by EFSA. Check the iodine content per dose on the Kiki Health packaging to remain within these ranges.
If hypothyroidism is caused by iodine deficiency (common in countries far from the coast), an iodine intake can indeed improve thyroid function. However, in France, dietary iodine deficiency is less common than historically, thanks to iodised salt. Autoimmune hypothyroidism (Hashimoto's, the most common) can be worsened by excess iodine. Never substitute medical thyroid treatment with kelp without endocrinological advice.
Follow the recommended dose on the Kiki Health packaging strictly. Iodine intakes must remain within the narrow therapeutic window: 150 to 250 µg/day (diet + supplementation combined). Calculate your total iodine intake (food + other supplements) before adding kelp. Populations living near the sea and consuming a lot of fish and seafood often have sufficient iodine intakes without supplementation.
Fucoidan is a sulphated polysaccharide extracted from brown algae with a growing immunological research profile. In vitro and animal studies show antiviral properties (inhibition of viral attachment to host cells), immunostimulatory (activation of NK cells and macrophages) and antithrombotic. Preliminary human studies show effects on immune markers. Clinical human research remains preliminary but promising for preventive use.
Important contraindications: pre-existing thyroid conditions (autoimmune hypothyroidism, hyperthyroidism, Graves' disease, thyroid nodules) — iodine can destabilise these conditions; thyroid hormone treatment (levothyroxine) without endocrinological advice; pregnancy and breastfeeding (high iodine needs but excess is dangerous — dose to validate with doctor); anticoagulant treatment (fucoidan has additive antithrombotic properties).
Marine algae are natural bioaccumulators — they can concentrate heavy metals and pollutants from their marine environment. The quality of kelp therefore depends directly on the purity of harvesting waters. Kiki Health sources from controlled marine zones and conducts contaminant testing. Check whether heavy metal analyses (arsenic, cadmium, lead, mercury) are available per batch on the Kiki Health website.
SuperKure is the official distributor of Kiki Health in France. Order at superkure.fr with 24–48h delivery from our French warehouse. No customs fees, free delivery from €60. Also discover Kiki Health Spirulina, Chlorella and Sea Moss for a complete range of algae and marine superfoods available at superkure.fr.
