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Why It’s Impossible for Women Over 40 to Lose Weight: Part 4 Nutrition

Nutrition for women over 40 isn’t always fun. Remember the days of being able to eat whatever we wanted, whenever we wanted? Gone are the glory days of having dessert every night and junk food all day. It’s been replaced with cottage cheese. Yes, that was my dessert last night…ok, and I confess, I also had a cup of hot chocolate.

Today let’s talk nutrition.

Everyone knows nutrition for women over 40 plays an important part in our fitness level. Without the proper nutrition, we will not see the fullness of our workout efforts.

We can be very serious about our diets when we want to be. But believe it or not, I don’t worry about those of you dieting and eating too much. For women over 40 trying to lose weight and get fit, we are more likely to restrict our diets too much than over eat which can be as bad for us as overeating. Ladies, starving ourselves will not work in the long run. What good is skinny if you are flabby? We want to be toned, leaned out like we were at 20 years old, am I right? So that takes eating, but eating the right amounts and the right foods.

How much should we eat?

There is a formula for that!

The Mifflin-St. Jeor Equation has been proven to be within 10 percent accurate and is what most dietary professionals use.


10 x (weight in kg) + 6.25 (height in cm) – 5 x age – 161 = total calories per day

Let’s take Bonnie, a 43 year old woman who weighs 160lbs, 5’8″ as an example.

10 x (73) + 6.25 x (173) – 5 x 43 – 161 =

730 + 1081 – 215 – 161 = 1435 calories

Of course, that does not take into account your exercise. You get to add the calories burned in exercise to your daily intake! How exciting is that?!!

So if Bonnie burned 300 calories exercising, her total daily calories would be 1735.

Just knowing how many calories to eat daily isn’t enough. We have to eat the right calories. That’s when macros come in.

It’s important to have the proper balance of nutrition. Proteins, carbohydrates and fats are macros – the building blocks of our diet.


The choices of foods we eat is the name of the game.

According to the formula found at, moderately active Bonnie’s macros should be:

Carbs 179g per day, 50% of total daily calories
Protein 108g per day, 30% of total daily calories
Fats 32g per day, 20% of total daily calories

Thanks to MyFitnessPal, and others, but MyFitnessPal is my favorite, it can be easy to keep track of what we eat daily, including macros and calories burned during exercise to give a complete caloric count.

We won’t get fit by starving ourselves. Contrary to what we thought many years ago, we get to eat to lose weight!

Don’t wait another day. Nutrition for women over 40 doesn’t have to be difficult.

Use the calculators for the total calories and macros needed to reach your goal.

Download the MyFitnessPal to track your intake and exercise daily.

Need a little more info on macros? Here’s a great guide!

If you missed the first 3 parts of the series, be sure to check them out and subscribe (located upper right of this page) so that you won’t miss another post!

Why It’s Impossible for Women Over 40 to Lose Weight: Part 1 Motivation
Why It’s Impossible for Women Over 40 to Lose Weight: Part 2 Medical Obstacles
Why It’s Impossible for Women Over 40 to Lose Weight: Part 3 Exercise 

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Thursday 8th of February 2024

Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.

fitoru fitness

Thursday 27th of February 2020

I heartily agree with all the above, as an advocate of healthy lifestyle. It’s so important that we understand the truth our dietary and nutritional beliefs. Food can be our number one medicine.

Kim Deavers

Sunday 10th of July 2016

Hey Stephanie. I just found your website today and have enjoyed reading your blog info. I am 47 years old and have had thyroid issues for about 15 years. I have just recently accepted the idea that I have not been able to loose weight because I have been starving myself all these years by not eating enough. I have been told by doctors, and health trainers to eat 1200-1500 calories to loose weight (and of course I have aimed for the lessor). I am a short woman well over 250 lbs. and according to this formula, I should be eating 1833 calories a day! Is this possible? I honestly don't think I can eat that much food in a day. And this doesn't include the calories burned by exercise!

Suzanne Cranford

Friday 22nd of April 2016

I agree with this completely. While I knew nothing of this formula, I watched my caloric intake, nutrition and exercise via MyFitnessPal. Att age 65 I lost 40 lbs. Now, still using MyFitnessPal, i have been successfully maintaining my weight and fitness level for 8 months now. I started at 158 lbs. and now weigh 118, and went from a size 12 -14 to a size 2-4. I have to say it has (and still is) fun and exciting, and I feel great!

Chrissa - Physical Kitchness

Wednesday 21st of October 2015

I really love the formula you have here for what you should eat. It's helpful for everyone! Thanks!

Stephanie Miller

Thursday 22nd of October 2015

Chrissa, So glad you liked it! Thanks for reading!

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