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Kelp: study protocols

5 study groups say how much Kelp participants took a day. These are the doses the studies gave. They are not a recommendation.

Kelp: what the research found →

Dose per serving from products

281 products in our catalogue print how much Kelp a serving holds.

Most common: 25 mg to 50 mg, 38% of 281 products.

Dose per servingProducts
100 mcg or less
12
100 mcg to 250 mcg
27
250 mcg to 500 mcg
0
500 mcg to 1 mg
0
1 mg to 2.5 mg
2
2.5 mg to 5 mg
5
5 mg to 10 mg
12
10 mg to 25 mg
36
25 mg to 50 mg
106
50 mg to 100 mg
33
100 mg to 250 mg
22
250 mg to 500 mg
6
500 mg to 1 g
12
over 1 g
8

Dose per serving from research

5 study groups in 4 studies say how much Kelp participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 1 g to 2.5 g, 60% of 5 study groups.

Daily doseStudy groups
1 g to 2.5 g
3
2.5 g to 5 g
0
5 g to 10 g
1
10 g to 25 g
1

Commonly used together

1 of 5 study groups took Kelp with something else, but nothing that 3 or more different studies gave.

5 study groups

Study
The Effects of Fermented Laminaria japonica on Short-Term Working Memory and Physical Fitness in the Elderly
2018 · FST group · Moderately active older adults; mean age 72.35 ± 5.54 years; condition not stated
1.5 g6 weeks32
Effects of Daily Kelp (Laminaria japonica) Intake on Body Composition, Serum Lipid Levels, and Thyroid Hormone Levels in Healthy Japanese Adults: A Randomized, Double-Blind Study
2021 · test group (boiled kelp powder group) · Japanese men and women aged 20–59 years with BMI 25–30 kg/m²
6 g8 weeks24
[Clinical assessment of dietary correction of metabolic syndrome by using specialized food product enriched with chrome]
2013 · Main group · Adults aged 30–65 years with metabolic syndrome
20 g26 weeks20
The Effects of Fermented Laminaria japonica on Short-Term Working Memory and Physical Fitness in the Elderly
2018 · FST group (biomarker assessment) · Moderately active older adults; mean age 72.35 ± 5.54 years; condition not stated
1.5 g6 weeks20
Antioxidant effects of fermented sea tangle (Laminaria japonica) by Lactobacillus brevis BJ20 in individuals with high level of γ-GT: A randomized, double-blind, and placebo-controlled clinical study
2012 · FST group · Healthy volunteers with high levels of γ-GT
1.5 g4 weeks—