I left Guyana 18 years ago and have lots of friends all over the world. No - I have a Master's degree in Nutritional Biochemistry. There are many Ph.D.'s here too. You said that your husband was an organic chemist. My husband is an organic chemist.
Nutrition is important in both cases.
It's easier to get to the store to get a variety of foods on Earth, as well as getting to a doctor if you had a problem. Our group doesn't actually make the food, we do the research that determines how much protein, calories, vitamins, carbohydrates etc. No - we have 5 nutritionists in our group. No - in the early days they were. Now the food looks a lot like Earth food.