not true about sa malamig or mainit. but true yung kung anong kinakain mo. yun ang makukuha like the what's in tje food not the temperature ng food/drinks. kasi regulated ng katawan mo amg breastmilk.
so if you drink coffee and coffee has acid, magiging acidic si baby mo 6 (as explained ng pedia). if you eat foods na nakakakabag, makukuha din yun ng baby mo..