GDM 7month preggy

Nag pa OGTT Ako ulit ngayong 7 months preggy, medyo mataas ung sugar level pero Sabi ni doc diet lang daw need. If ever po sa naka experienced ng GDM and na overcome po ito, Ano poa recommend nyo po na food and drink? As of now po sa drink Milo + milk po ko ng enfamama, pero di Naman lagi. Sky flakes fiber crackers din po snacks ko and wheat bread , okay lang po ba ito or any additional suggestions po what to eat and drink ?