If you happen to have worked from home alongside a partner, you'll know that what you're eating starts to becomeverysimilar. Meal prep is just easier when it’s just done once, right?

If only it were that easy, when so many of us have different food preferences, intolerances and nutritional needs.

According to Nutrition Australia's Australian Dietary Guidelines, women aged 19-50 are recommended to eat (in standard serves) each day:

5 serves of vegetables and legumes

2 serves of fruit

6 serves of grains (cereal)

2.5 serves of lean meat, fish, poultry, eggs, nuts, seeds, legumes and beans

2.5 serves of milk, yoghurt, cheese and alternatives

0-2.5 allowance for additional serves from any food group (for taller and more active people). Limit 'discretionary foods' to a maximum of one serve per day (approximately 600kJ)

Men aged between 19-50 are recommended to eat:

6 serves of vegetables and legumes

2 serves of fruit

6 serves of grains (cereal)

3 serves of lean meat, fish, poultry, eggs, nuts, seeds, legumes and beans

2.5 serves of milk, yoghurt, cheese and alternatives

0-3 allowance for additional serves from any food group (for taller and more active people). Limit 'discretionary foods' to a maximum of one serve per day (approximately 600kJ).

For older Australians, the categories are similar but slightly lower in some groups.

In this piece, we're looking at couples in their 20s, 30s and 40s - a time when weddings, pregnancies and changing job situations can often affect our diets.

Mamamiaasked three different couples with different preferences and nutritional needs to share their food diaries for one week...

Amy and Lucy

Amy, 34, and her wife Lucy, 33, believe they have a fairly normal and balanced diet but it's become healthier since Lucy fell pregnant as they only want the best food for their son.

“Lucy’s diet has changed a bit since she fell pregnant, mostly in terms of the amount she consumes daily. Lucy takes Elevit Pre-conception & Pregnancy multivitamin daily which she started taking three months prior to getting pregnant and will continue to take throughout her pregnancy," Amy said. “This multivitamin helps support baby’s development in conjunction with Lucy’s own healthy nutritional choices.”

Nutrient requirements increase during pregnancy by up to 50 per cent, which can be tricky to get every day through diet alone. Elevit is one vitamin supplement that's specially formulated with essential ingredients including folic acid, to help prepare women's bodies for pregnancy and help support the needs of their baby during pregnancy. It's recommended to take Elevit four weeks prior to conception, as the risk of neural tube defects is highest in the early weeks of pregnancy.

While Amy and Lucy don’t have any food allergies, Lucy has a low tolerance for garlic and is avoiding certain foods while pregnant. Amy isn’t a big fan of nuts, though she doesn’t have an allergy but does have a sweet tooth, more so than Lucy.

“I love chocolate and could eat a whole block so have to be quite strict with myself and Lucy practically lived off bagels in the early stages of her pregnancy,” Amy said. “Holistically we have a healthy relationship with food.”

Day One

Amy -Breakfast:A mandarin, apple and black coffee;Lunch:Omelette with spinach;Dinner:Chicken stir fry

Lucy -Breakfast:Avocado toast and a coffee;Snack:Apple;Lunch:Homemade chicken soup;Snack:Cheese and crackers;Dinner:Chicken stir fry

Day Two

Amy -Breakfast:A mandarin, apple and black coffee;Lunch:Omelette with spinach;Dinner:Baked salmon with Asian greens

Lucy -Breakfast:Avocado toast and a coffee;Snack:Apple;Lunch:Salad sandwich;Snack:Hummus and crackers;Dinner:Baked salmon with Asian greens

Day Three

Amy-Breakfast:A mandarin, apple and black coffee;Lunch:Omelette with spinach;Dinner:Spinach and ricotta ravioli with green salad

Lucy -Breakfast:A mandarin, apple and a coffee;Snack:Fruit salad;Lunch:Omelette with spinach and avocado;Dinner:Spinach and ricotta ravioli with green salad

Day Four

Amy -Breakfast:A mandarin, apple and black coffee;Lunch:Omelette with spinach;Dinner:Chilli prawn linguine

Lucy -Breakfast:A mandarin, apple and a coffee;Snack:Blueberry muffin;Lunch:Omelette with spinach and asparagus;Dinner:Chilli prawn linguine

Day Five

Amy -Breakfast:A mandarin, apple and black coffee;Lunch:Home-made Banh Mi;Dinner:Greek lamb with Greek salad

Lucy -Breakfast:A mandarin, apple and a coffee;Lunch:Home-made Banh Mi;Snack:Yoghurt and honey;Dinner:Greek lamb with Greek salad

Day Six

Amy -Breakfast:A mandarin, apple and black coffee;Lunch:Medley of salads;Dinner:Massaman beef curry

Lucy -Breakfast:Eggs and feta on toast and a coffee;Snack:Apple;Lunch:Medley of salads;Snack:Hummus and crackers;Dinner:Massaman beef curry

Day Seven

Amy -Breakfast:A mandarin, apple and black coffee;Lunch:Omelette with spinach;Dinner:Dumplings with Asian greens

Lucy -Breakfast:Eggs and avocado on toast and a coffee;Snack:Yoghurt;Lunch:Ham and salad sandwich;Snack:Walnuts and cheese;Dinner:Dumplings and Asian greens

Pariya and Viktor

When Pariya, 26, and her partner Viktor, 40, worked from home, their diets became very similar (aside from taking into account Pariya’s lactose intolerance).

Viktor doesn’t have any food allergies or intolerances and the pair consider their diet to be average as they rarely eat junk food.

“We have completely cut out junk food like McDonalds, Hungry Jacks and KFC. We will have a pizza maybe twice a month on a weekend,” Pariya said.

“Vik has also completely cut out processed sugars since May, and we only drink freshly squeezed juices or water. I may have a Coke once every three weeks.”

Day One

Pariya -Breakfast:Cereal with lactose-free milk;Lunch:Chicken with barberries and rice;Dinner:Lamb celery stew with rice and salad

Viktor -Breakfast:Weet-Bix with milk;Lunch:Chicken with barberries and rice;Dinner:Lamb celery stew with rice and salad

Day Two

Pariya -Breakfast:Tuna spaghetti;Lunch:Chicken soup;Dinner:Lamb celery stew with rice and salad

Viktor -Breakfast:Weet-Bix with milk;Lunch:Beef burger and salad;Dinner:Lamb celery stew with rice and salad

Day Three

Pariya -Breakfast:Two eggs with mushrooms and avocado;Lunch:Corn with sweet potato and carrot;Dinner:Okra stew with rice and salad