Krill oil
4 papers10 findings
- 4 independent labs in 2 countries
- Funders: Central Michigan University and 4 more
- Human trial1
- Animals3
Outcomes
10Handgrip strength
upin humans1
1 study
Handgrip strength
upin humans1
Krill oil improves handgrip strength in humans (-0.2 ± 0.5 kg vs -0.9 ± 0.7 kg).
“KO supplementation during body weight loss attenuates the decline in FFM and muscle strength.”
Human trialduring alternate-day fasting8 weeksn = 41
Obesity (Silver Spring, Md.)16 Jul 2025
Fat-free mass
downin humans1
1 study
Fat-free mass
downin humans1
Krill oil prevents fat-free mass in humans (-0.2 ± 0.9 kg vs -1.2 ± 2.0 kg).
“Changes in FFM and HGS were different (p < 0.05) between groups.”
Human trialduring alternate-day fasting8 weeksn = 41
Obesity (Silver Spring, Md.)16 Jul 2025
Body weight
no changein humans1
1 study
Body weight
no changein humans1
Krill oil has no effect on body weight in humans (-4.6 ± 1.4 kg vs -4.5 ± 1.9 kg).
“Body weight reduction was not different (p > 0.05) between groups (KO, -4.6 ± 1.4 kg; Placebo, -4.5 ± 1.9 kg).”
Human trialduring alternate-day fasting8 weeksn = 41
Obesity (Silver Spring, Md.)16 Jul 2025
Synaptic density
no changein rats1
1 study
Synaptic density
no changein rats1
Krill oil has no effect on synaptic density in rats.
“However, KO supplementation did not produce significant changes in the other quantified parameters.”
AnimalsControl and high-fat dietscortex and hippocampus12 weeks
International journal of molecular sciences28 Oct 2024
neurogenesis
no changein rats1
1 study
neurogenesis
no changein rats1
Krill oil has no effect on neurogenesis in rats.
“However, KO supplementation did not produce significant changes in the other quantified parameters.”
AnimalsControl and high-fat dietscortex and hippocampus12 weeks
International journal of molecular sciences28 Oct 2024
Inflammation
no changein rats1
1 study
Inflammation
no changein rats1
Krill oil has no effect on inflammation in rats.
“However, KO supplementation did not produce significant changes in the other quantified parameters.”
AnimalsControl and high-fat dietscortex and hippocampus12 weeks
International journal of molecular sciences28 Oct 2024
Spatial memory
no changein rats1
1 study
Spatial memory
no changein rats1
Krill oil has no effect on spatial memory in rats.
“However, KO supplementation did not produce significant changes in the other quantified parameters.”
AnimalsControl and high-fat diets12 weeks
International journal of molecular sciences28 Oct 2024
Lung cancer
upin mice1
1 study
Lung cancer
upin mice1
Krill oil increases lung cancer in mice (8.2-fold).
“Lovaza and krill oil significantly increased lung tumors (4.1- and 8.2-fold) and hemorrhagic diathesis (3.9- and 3.1-fold).”
Animalsmales
Dietary supplementation with Lovaza and krill oil shortens the life span of long-lived F1 mice
Age (Dordrecht, Netherlands)10 May 2014
Lifespan
downin mice1−4.7% median lifespan
1 study
Lifespan
downin mice1−4.7% median lifespan
Krill oil shortens lifespan in mice (-4.7% median lifespan).
“Lovaza and krill oil non-significantly shortened median life span by 9.8 and 4.7 %, respectively.”
Animals1.17 g oil/kg dietmales
Dietary supplementation with Lovaza and krill oil shortens the life span of long-lived F1 mice
Age (Dordrecht, Netherlands)10 May 2014
CAT
upin mice1
1 study
CAT
upin mice1
Krill oil increases CAT in mice (P < 0.001).
“significantly higher (P < 0.001) activities and expression of CAT, GSH-Px and SOD”
Animalsin 6.5-month-old female B/W mice compared to CO-fed miceliver10% (w/w)females
Lipids1 Aug 1994