Avid Bioservices Inc (CDMO)

[volgoat]

PTDSS1 expression in all human tissues and cell lines examined, with highest levels in heart, lung, liver, and kidney

PTDSS1 expression was enriched in the brain and skin of human fetuses, with lower levels of expression in bone

Dietary sources

PS can be found in meat, but is most abundant in the brain and in innards such as liver and kidney. Only small amounts of PS can be found in dairy products or in vegetables, with the exception of white beans.
Biosynthesis of Phosphatidylserine

Table 1. PS content in different foods.[18]
Food PS Content in mg/100 g
Soy lecithin 5900 [19]
Bovine brain 713
Atlantic mackerel 480
Chicken heart 414
Atlantic herring 360
Eel 335
Offal (average value) 305
Pig's spleen 239
Pig's kidney 218
Tuna 194
Chicken leg, with skin, without bone 134
Chicken liver 123
White beans 107
Soft-shell clam 87
Chicken breast, with skin 85
Mullet 76
Veal 72
Beef 69
Pork 57
Pig's liver 50
Turkey leg, without skin or bone 50
Turkey breast without skin 45
Crayfish 40
Cuttlefish 31
Atlantic cod 28
Anchovy 25
Whole grain barley 20
European hake 17
European pilchard (sardine) 16
Trout 14
Rice (unpolished) 3
Carrot 2
Ewe's Milk 2
Cow's Milk (whole, 3.5% fat) 1
Potato 1

The average daily PS intake from the diet in Western countries is estimated to be 130 mg.