Magnesium in Seaweed

Magnesium is in a moderate quantity in seaweed, but magnesium does not explain the large reduction in period pain nor the improvement in general health from consuming Pacific Sea Moss. Find out how period pain was significantly reduced, even when trial participants were taking magnesium for period pain.

Magnesium in seaweed is implicated for general pain relief as well as dysmenorrhoea.

Women with dysmenorrhoea have a lower serum magnesium. (Chhabra 2017) There was also a Cochrane Review on the role of magnesium. (Parazzini et al. 2017) Skibola in 2004, and Jane Teas both used kelp which has a higher magnesium content than Kappaphycus – the species Biosea Health uses.

However, there is evidence of COX pathway inhibition from extracts. (Makkar & Chakraborty 2017; Zakaria et al. 2018)

Magnesium is not the whole reason why women find reduction of pain from eating Pacific Seamoss for dysmenorrhea. The fibre contributes to gut health and a change in microbiome, but even this does not explain the whole range of improvements women get.

In a pilot trial on dysmenorrhea, we asked about supplements that trial participants were taking. We had 8 women who were taking a dedicated magnesium supplement every day, that is excluding multi-vitamins. Seven provided pre and post seaweed pain data. A quick paired-samples t-test is significant, which suggests that seaweed activity is over and above the impact of magnesium.

The median pain before seaweed was 8. After seaweed was 2. (Paired T test probability P>0.007)


Chhabra, S 2017, Primary dysmenorrhea and serum magnesium in young girls A pilot study: Nessa J gynecology.

Makkar, F & Chakraborty, K 2017, Antidiabetic and anti-inflammatory potential of sulphated polygalactans from red seaweeds Kappaphycus alvarezii and Gracilaria opuntia, International Journal of Food Properties, vol. 20, no. 6, pp. 1326-37.

Parazzini, F, Di Martino, M & Pellegrino, P 2017, Magnesium in the gynecological practice: a literature review, Magnesium research, vol. 30, no. 1, pp. 1-7.

Zakaria, A, Jais, MR & Ishak, R 2018, Analgesic properties of nigella sativa and eucheuma cottonii extracts  Journal of natural science, biology, and medicine, vol. 9, no. 1, p. 23.

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