Why Protein Really Matters in Pregnancy & Postnatal

(And Why It Can Be the Missing Piece Behind Sugar Cravings, Energy Crashes, and Feeling “Not Quite Right”)

Pregnancy and the postnatal period are two of the most nutritionally demanding phases a woman’s body will ever experience. You are not only supporting your own metabolism, recovery, and hormone regulation — you are growing a baby, healing tissues, producing milk, and often doing all of this while profoundly sleep deprived. Your hormones are all over the place as they readjust too.

Yet many women find themselves caught in an exhausting cycle of craving sugar, grabbing quick carbohydrates, feeling briefly better, then crashing again and wanting more cake or toast or that whole plate of biscuits and still being hungry and felling rubbish. I’ve written this to help, not to judge.

This is not about willpower. It is about physiology — and often, insufficient protein.

Why Do You Crave Sugar So Much During Pregnancy and After Birth?

Many women feel frustrated by intense cravings for toast, biscuits, cereal, or sweet foods, especially when tired. But these cravings are your body sending a message: it needs reliable fuel and rebuilding nutrients, not just calories.

When you eat refined carbohydrates on their own (like white toast or sugary snacks), they are digested very quickly.

This causes:

1. A rapid spike in blood glucose

2. A large insulin release to move that glucose into cells

3. A sudden drop in blood sugar shortly after

4. A stress response — your brain perceives this as an energy shortage

This drop triggers hunger hormones and signals you to eat again — usually more quick sugar.

You feel:

• Shaky or irritable

• Suddenly exhausted

• Still hungry despite eating

• Drawn to more sugar or white carbs

This is the classic blood sugar rollercoaster, and pregnancy hormones make you more sensitive to it.

Why Tiredness Makes Cravings Worse

Sleep deprivation — something every mum has — significantly alters appetite regulation.

When you are tired:

• The hormone ghrelin (which stimulates hunger) increases

• The hormone leptin (which signals fullness) decreases

• Your brain seeks fast glucose as emergency fuel

So when you reach for sugar during those 3pm slumps or night feeds, your body is trying to keep you functioning — but it’s choosing a short-term fix that worsens the long-term cycle.

Where Protein Changes Everything

Protein is not just about muscle. It provides amino acids, which are the raw materials your body uses for:

• Tissue healing after birth

• Building your baby’s organs and tissues during pregnancy

• Making breastmilk (which is rich in protein components)

• Supporting pelvic floor and abdominal repair

• Producing enzymes and hormones

• Regulating blood sugar stability

• Supporting immune recovery and resilience

• Neurotransmitter production (mood, focus, emotional regulation)

When protein is missing, your body keeps asking for more food because it still hasn’t received the nutrients it needs to repair and regulate itself.

How Protein Helps Stop the Sugar–Crash Cycle

Eating protein alongside fibre-rich vegetables and whole carbohydrates slows digestion dramatically.

This leads to:

✔ A gradual rise in blood sugar instead of a spike✔ Less insulin released → more stable energy

✔ Feeling full for longer (protein suppresses hunger hormones)✔ Reduced cravings because the brain feels nourished

✔ Sustained energy rather than peaks and crashes

Instead of: Quick fuel → crash → more cravings → exhaustion

You get: Steady fuel → stable mood → real satiety → better recovery

Protein Needs Are Higher Than You Think

During pregnancy and postnatally, protein requirements increase significantly. Your body is building and repairing at an accelerated rate.

Yet many typical “easy” meals for new mums are heavily carbohydrate-based:

• Toast

• Crackers

• Cereal

• Pasta alone

• Snack bars

These provide energy, but very little rebuilding nutrition — which is why women can feel constantly hungry despite eating regularly.

Protein’s Role in Breastfeeding and Recovery

Breastmilk production is metabolically expensive. Your body prioritises milk production, often at the expense of your own reserves if intake is inadequate.

Adequate protein supports:

• Milk production quality

• Maternal muscle preservation

• Reduced postnatal depletion

• Wound healing (perineal tears, caesarean recovery)

• Hormonal recalibration

• Reduced fatigue over time

Think of protein as restorative nutrition, not just fuel.

The Difference Women Often Notice When They Increase Protein

Women commonly report:

• Fewer sugar cravings within days

• More stable energy between meals

• Feeling calmer and less “wired but tired”

• Improved fullness and satisfaction

• Better recovery and strength return

• Reduced need for constant snacking

Because finally, the body is receiving what it has been asking for.

What Does This Look Like in Real Life?

You don’t need complicated meal plans — just consistent inclusion of protein.

Build meals around protein first:

• Eggs with vegetables and wholegrain toast

• Greek yoghurt with nuts, seeds, and berries

• Chicken, fish, tofu, or lentils added generously to meals

• Oats made with milk + chia + nut butter

• Hummus, cheese, or boiled eggs with snacks

Aim to include protein every time you eat.

This helps prevent the blood sugar dips that drive cravings. Breakfast being the most important! (prep something easy to put in the fridge the night before)

This Isn’t About Dieting — It’s About Supporting Your Physiology

Pregnancy and motherhood are not times to “eat less” or rely on quick convenience calories alone. They are times of extraordinary demand, and your nutrition needs to match that demand.

Protein is one of the most powerful tools to:

• Stabilise energy

• Reduce cravings

• Support healing

• Nourish hormone balance

• Sustain both you and your baby

When women understand this, nutrition shifts from restriction to intentional nourishment — giving the body what it needs to function well. You can still enjoy having a cake or biscuits here and there but you won’t always crave them anymore and you’ll feel so much better, enjoying wholesome nourishment for your body.