EnergyUSDA legacy data for raw stone-ground kernel tahini gives about 86 calories per tablespoon.
ProteinAbout 2.7 g per tablespoon in that same USDA entry.
CalciumAbout 63 mg per tablespoon in that entry, but calcium varies substantially with whether the hull is retained.
MagnesiumAbout 14 mg per tablespoon in the USDA raw stone-ground kernel entry.
Sesame lignansSesamin and sesamolin are characteristic sesame compounds studied for their chemistry and biological activity.
FatTahini is energy-dense because sesame is an oilseed. A little goes a long way in sauces and dressings.
Numbers vary by brand, processing and whether the paste is made from hulled kernels or more intact sesame seed. Treat label values as the better guide for the jar you actually buy.