TDEE and Macro Calculations for Pregnant or Breastfeeding Women

If you are pregnant or breastfeeding, then counting macros is an effective way to maintain appropriate weight gain.

It’s even more useful when attempting to lose weight post pregnancy – in a healthy and sustainable way.

However, you must pay special attention before jumping in.

What should my macros be when pregnant?

Weight gain is a normal part of pregnancy and increased calories are a necessity.

However, the “eating for two” mindset can sometimes lead to unhealthy and unnecessary weight gain during pregnancy.

Excessive weight gain can lead to complications such as gestational diabetes, high blood pressure, back pain, and obesity after pregnancy.¹

When pregnant, you are eating to support a developing fetus.

What is appropriate weight gain during pregnancy?

According to the latest medical guidelines:

Should I measure calories while pregnant?

Women who are pregnant really only need to eat an additional 200-300 calories per day.¹

More if you are underweight and less if you are already overweight.

So here’s how that works when calculating your macros.

To account for her pregnancy, she would add calories:

• 1st Trimester: 1914 calories (no extra calories required)
• 2nd Trimester: 2214 calories (300 extra calories)
• 3rd Trimester: 2314 calories (400 extra)

To calculate the macros for 2nd and 3rd trimesters, some math is required.

Final adjusted macros for 2nd trimester:

• Carbs: 244 grams
• Protein: 143.5 grams
• Fat: 74 grams

How much protein is too much during pregnancy?

Different countries have different recommendations for protein intake during pregnancy.

The broad guidance is 10-35% of energy, with some countries suggesting 15–25% of energy.

The example above shows around 25.9% – however our macro calculator has an option for more moderate protein amounts (which may be the best option)

How many carbs do I need while pregnant?

A low carbohydrate diet is not recommended during pregnancy – unless you are at risk of gestational diabetes.

The suggestions made by the calculator example above are appropriate.

If you fall into the obese category you may want to lose fat while pregnant. This may help avoid the complications often associated with obesity and pregnancy.

I strongly advise you to check all of this over with your OBGYN before beginning.

They will understand your complete health profile and can give you the “all clear” before beginning this or any dietary regimen. They will monitor the weight gain of your baby and make sure you are on track for a healthy pregnancy.

What should my macros be when breastfeeding?

If you are looking to lose the weight gained during pregnancy, then counting macros is great option.

It allows you to maintain a safe calorie deficit for fat loss while having the resources needed to produce a nutritious milk supply for the growing baby.

Step 1: Get your base calorie needs

Experts recommend that breastfeeding mothers consume 400-500 extra calories during the breastfeeding period.²

Some sources say as little as 300 extra, but if a woman is also trying to lose weight, 300 might not be enough to produce highly nutritious milk.

Here’s an example my calculator.

Step 2: Adjust calories for breastfeeding

An additional 400 calories are added to the TDEE.

Breastfeeding Adjusted Weight Loss TDEE: 1931 calories

Step 3: Adjust macros for breastfeeding

To adjust the macros, we ration them out at the percentages given:

Breastfeeding adjusted weight loss macros:

• Carbs: 181.7 grams
• Protein: 156.4 grams
• Fat: 64 grams

Some women with a lot of weight to lose may be fine with just adding 300 calories while others may have to add in 500.

Always consult with your OBGYN or Pediatrician before beginning any diet while breastfeeding.

What food should I eat?

While macro tracking may give you the freedom to satisfy your ice cream cravings, I can’t stress enough the importance of following the 85:15 healthy eating guideline.

During pregnancy and breastfeeding, 85% of your diet should be nutritious, whole foods.

15% can be the treats, snacks, and processed foods you may be craving.

Aim for:

• Lean proteins
• Healthy fats
• Fresh vegetables
• Fresh fruit
• Whole grains

See a comprehensive list of the best foods to choose for each macro.

Need some help?

If you need help, I can calculate everything for you as part of my comprehensive macros coaching package.

Accelerate Your Diet and Fitness Goals with My Macro Solution System

Step-by-step self-guided program -or- fully customized personal macros coaching. Feel exhilarated as you conquer your goals!

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