Sippy cup help

Iviwe 🇿🇦 • COG

My LO will not drink more than 20 ml at a time lately. We started having her use a sippy cup at 7 months after taking a bottle with latex nipples only. Now she won't drink she'll drink maybe 10-20 ml once she wakes up from each nap.

She loves food and eats a lot. 45 g- 100g each time but I heard that she should still be drinking the same amount of milk as before.

What can I do ?