Do nutrients i take in during pregnancy all get passed on to the foetus? what key nutrients should I consume?

Yes, but the nutrients taken up by your foetus is self regulated based on the foetus biological requirement. Guidelines for every mother to observe - 1, Take nutrient rich food to ensure balanced nutrients for foetus 2, Avoid excess calorie intake, particularly if u r obese or diabetic 3, Avoid using processed vegetable cooking oils 4, Eat smart brain foods that provide smart brain fats to your foetus developing brain & nervous system 5, Try to eat as much organic food as u can

Just go thru your normal diet hopefully u r on a healthy diet with fish oil and multivitamins for the healthy foetus. Might want to consume some milk formula for mothers too for calcium and additional vitamins. All extra vitamins will be passed out of your system so dun worry on overdose. :)