I'm a low supply mum, my LO is 1 month old.. I got donated fbm from a kind hearted lady but her daughter is around 2 years plus.. Will the bm provides the same nutrient that's ok for my 1 month old LO?

Unlikely not as the nutritional requirements for a 6 months old and a month old is different. It will be better getting donated EBM +/- 1-2 months apart. Meanwhile you can try to boost your volume by taking food such as beetroot, virgin coconut oil, lactation cookies (make not work for some), avocado shake with gula melaka (sinful but helpful), fenugeek etc. Or you can request metoclorpomide or domperidone to help boost your volume. My sure work boosters for myself are beetroot, durians (time to indulge since it's in season), avocado with gula melaka and sweet potatoes leaves. Avoid dang gui, livers, black bean paste, alcohol and peppermint. Keep latching or pump regularly will also boost supplies. Be happy mummy.