Minimum Effective Variety

Estimated Time to Read: 9 minutes

TL;DR

We use Minimal Effective Dose (MED) as a guiding principle in TNT Strength training: don't do more than you need to do to produce the desired result.

I believe the same concept can be applied to nutrition.

Your P.E.P.—Personal Eating Plan—doesn't need maximum variety. It needs sufficient variety.

The goal isn't to eliminate variety. It's to eliminate unnecessary variety.

Find the smallest practical selection of foods that allows you to:

• Get adequate protein
• Meet your energy requirements
• Manage your carbohydrates
• Get appropriate dietary fat
• Consume adequate fiber, vitamins, and minerals
• Enjoy your food
• And, most importantly, stick to the plan

Then repeat.

Because the most sophisticated nutrition plan in the world is worthless if you can't consistently execute it.

Minimum Effective Variety isn't about eating the same thing forever. It's about making your nutrition as simple as it can be without making it nutritionally inadequate or psychologically unsustainable.

That's TNT.

Maybe Your P.E.P. Doesn't Need More Variety

Nutrition advice loves the word variety.

• "Eat a wide variety of foods."
• "Make sure you get plenty of variety."
• "Try a new recipe every week."
• "Don't eat the same thing every day."

And there's certainly truth behind the idea that eating a variety of nutrient-dense foods can help provide nutritional adequacy.

But somewhere along the way, variety became confused with quality.

They're not the same thing.

A diet containing 40 different foods isn't automatically better than one containing 20.

And a meal doesn't become healthier simply because you changed the recipe.

Here's the question I think is more useful:

How much variety do you actually need?

That's where TNT's concept of Minimum Effective Variety comes in.

From MED to MEV

At TNT Strength, our training philosophy is built around Minimal Effective Dose.

We aren't interested in doing more simply because more is possible.

We want to determine the minimum amount of productive training required to stimulate the desired adaptation.

Then we recover.

Then we repeat.

Nutrition can be approached the same way.

Minimum Effective Variety

MEV asks:

What is the minimum amount of dietary variety necessary to provide adequate nutrition while making the P.E.P. as simple and sustainable as possible?

Notice what I did not say.

I didn't say:

"Eat as few foods as possible."

That's not the objective.

I also didn't say:

"Variety is bad."

It isn't.

I'm saying:

Don't add complexity unless it provides a benefit.

That's a very different proposition.

Simple Doesn't Mean Nutritionally Incomplete

Imagine that I build a P.E.P. around a relatively small number of foods:

• Eggs.
• Greek yogurt.
• Chicken.
• Lean beef.
• Salmon.
• Potatoes.
• Rice.
• Fruit.
• A handful of vegetables.
• Olive or avocado oil.
• Maybe some cottage cheese or whey protein.

That's not an especially exciting grocery list.

But it can be extremely effective.

If those foods, in appropriate quantities and combinations, allow an individual to meet their energy, protein, fiber, micronutrient, and dietary-fat requirements, what exactly have we gained by adding another 30 foods?

Maybe nothing.

And that's the point.

Variety should solve a problem.

If adding a food improves nutritional adequacy, enjoyment, cultural compatibility, convenience, or adherence, great.

Add it.

If it simply creates another decision, another recipe, another ingredient to buy, another calorie-dense food to portion, and another opportunity to go off-plan?

Maybe we don't need it.

The Adherence Problem

Here's where this becomes particularly important.

Let's say your P.E.P. requires you to make 21 different meals every week.

• Different breakfasts.
• Different lunches.
• Different dinners.
• Different snacks.
• Different ingredients.
• Different recipes.
• Different portions.
• Different shopping lists.

It sounds great.

It might even look fantastic on Instagram.

But now you've created 21 opportunities every week to make a decision about food.

That's a lot of decisions.

Compare that with:

• Breakfast: the same basic meal Monday through Friday.
• Lunch: two predictable options.
• Dinner: three or four rotating meals.
• Snacks: a small selection of known quantities.

Suddenly, most of your food decisions have already been made.

You don't have to wake up and ask:

"What should I eat today?"

You already know.

That's not boring.

That's friction reduction.

The Less You Have to Think About, the Easier It Is to Execute

Think about something you do every day without thinking about it.

• Brushing your teeth.
• Getting dressed.
• Making coffee.

You don't need a motivational speech before you do it.

You've established a routine.

Food can work the same way.

When your P.E.P. is predictable, you can turn nutrition into a series of relatively automatic behaviors.

• You know what you're eating.
• You know approximately how much.
• You know what you need to buy.
• You know how to prepare it.
• You know what your substitutions are.

And because you've repeated it, you become good at it.

This matters because behavioral weight-management research consistently identifies self-monitoring and adherence as important components of successful interventions. Systematic reviews have found that dietary self-monitoring can support weight loss, although the relationship between the amount of monitoring and the magnitude of weight loss is not perfectly understood.

The research doesn't prove that "eating the same foods causes weight loss."

That's not what I'm claiming.

The practical TNT argument is simpler:

A nutrition strategy that is easier to execute consistently has a better chance of being executed consistently.

And execution is where nutrition actually happens.

Variety Can Work Against You

There's another interesting piece of the research.

A systematic review and meta-analysis examining food variety found that greater variety within meals was associated with greater food and energy intake. The authors also noted substantial variation between studies, meaning we shouldn't turn this into some simplistic rule that "variety makes you fat."

But the finding makes intuitive sense.

Imagine eating nothing but chicken breast.

You might eventually decide you've had enough.

Now put chicken breast, steak, pasta, potatoes, bread, cheese, fruit, dessert, and three different sauces in front of you.

Suddenly, you've got options.

Variety can make eating more interesting.

That's wonderful when we're talking about nutritious foods and an enjoyable diet.

But if you're trying to control energy intake, constantly increasing the number of highly palatable choices available isn't necessarily an advantage.

Again, context matters.

Variety is a tool.

It isn't inherently good or bad.

Don't Confuse Variety With Nutritional Adequacy

This is where I want to be especially clear.

There is legitimate evidence that dietary diversity can be associated with nutritional adequacy and certain health outcomes. But the research is complicated because "dietary diversity" can mean different things depending upon which foods are being counted. A systematic scoping review found that diversity measures were often associated with nutrient adequacy, while associations with body weight and other health outcomes were much less consistent.

That's important.

Because I'm not advocating a diet consisting of three foods.

I'm advocating strategic variety.

For example:

• If eating several different vegetables throughout the week makes it easier to obtain a broad range of nutrients and keeps you happy with your P.E.P., that's useful variety.
• If rotating three protein sources makes your diet more enjoyable and sustainable, that's useful variety.
• If adding five different protein bars, four kinds of cereal, seven flavors of yogurt, and twelve snack options simply gives you more opportunities to eat, I'm not convinced that's an improvement.

More isn't automatically better.

Build the Foundation First

At TNT Strength, I like to keep nutrition brutally simple.

1. Prioritize Protein

Protein is the anchor.

Choose a small number of protein sources that you enjoy, digest well, can afford, and can consistently prepare.

• Chicken.
• Beef.
• Fish.
• Eggs.
• Greek yogurt.
• Cottage cheese.
• Whey.
• Whatever works for you.

You don't need every protein source available at Costco.

You need enough reliable options to consistently hit your target.

For resistance-trained people, evidence supports relatively high protein intakes, and a large meta-analysis found that increases in protein intake enhanced resistance-training gains, with benefits generally plateauing around 1.6 g/kg/day in the analyzed data. Individual needs can differ, particularly with age, body composition, training status, and calorie restriction.

2. Manage Carbs

Carbohydrates are a tool.

Choose sources that fit your energy requirements, training demands, preferences, and goals.

• Rice.
• Potatoes.
• Oats.
• Fruit.
• Beans.
• Whatever works.

You don't need twelve carbohydrate sources.

You need enough carbohydrate to support your objectives.

3. Make Friends With Fat

Dietary fat is essential.

But it's also energy dense.

So choose a few reliable sources and learn your portions.

• Olive oil.
• Avocado oil.
• Nuts.
• Seeds.
• Eggs.
• Fatty fish.
• Natural peanut butter.

Again, the objective isn't maximum variety.

It's appropriate variety.

4. Eat Your Plants

Vegetables and fruit provide fiber and micronutrients.

This is one area where some variety makes a lot of sense.

You don't have to eat a different vegetable every meal.

But having several fruits and vegetables in rotation can help create a nutritionally robust P.E.P.

The 80/20 P.E.P.

One practical way to apply Minimum Effective Variety is to think in terms of an 80/20 structure.

Not as a rigid mathematical rule.

As a concept.

Make roughly 80% of your diet predictable.

These are your staples.

• The foods you buy every week.
• The meals you know how to prepare.
• The portions you've already established.
• The foods that make hitting your nutritional targets easy.

Then leave roughly 20% flexible.

That might be:

• A restaurant meal.
• Dinner with friends.
• A different recipe.
• A birthday.
• A dessert.
• Trying something new.
• Eating whatever your family is having.

This is important because a P.E.P. shouldn't become a prison.

Structure creates consistency. Flexibility creates sustainability.

Your P.E.P. Should Be Personal

This is why we call it a Personal Eating Plan.

There is no universal number of foods that constitutes the "correct" amount of variety.

One person might thrive eating essentially the same breakfast every day.

Another person might go insane after three days.

One person might happily eat chicken five days a week.

Another person might never want to see another chicken breast again.

Neither person is wrong.

The question is:

What allows this individual to consistently accomplish the objective?

That's the coach's job.

Not to impose a diet.

To identify the strategy that works.

The Boredom Test

Here's a simple test I like.

If your P.E.P. is working beautifully and you're happy with it:

Don't change it just because you think you're supposed to.

If you're bored:

Add some variety.

If you're struggling to hit protein:

Change the protein options.

If you're overeating:

Look at your food environment, portions, energy density, and available choices.

If you're missing nutrients:

Expand the appropriate food categories.

If you're constantly eating off-plan because your P.E.P. is too restrictive:

The plan needs to change.

The P.E.P. serves the person.

The person doesn't serve the P.E.P.

Stop Trying to Make Nutrition Interesting

This might be the most controversial thing I say in this article.

Your nutrition doesn't have to entertain you.

• Your life should.
• Your family should.
• Your friends should.
• Your hobbies should.
• Your training should.

Your food needs to be enjoyable, but it doesn't have to provide constant novelty.

There's nothing wrong with having a boring breakfast if it makes your life easier.

There's nothing wrong with eating the same lunch four days in a row.

There's nothing wrong with knowing exactly what you're going to eat tomorrow.

In fact, there can be tremendous freedom in it.

Because you've eliminated the question.

The TNT Rule: Minimum Effective Variety

Here's the concept I want you to remember:

Find the minimum amount of dietary variety that allows you to meet your nutritional requirements, enjoy your food, and consistently execute your P.E.P.

Then stick with it.

Don't add complexity because a social-media influencer told you that healthy eating requires 30 different plants every week.

Don't eliminate variety because you think TNT says "boring is better."

Neither is the point.

The point is optimization.

We want enough variety.

Not maximum variety.

Enough.

Less Complexity. More Consistency.

This is the nutritional equivalent of our training philosophy.

• You don't need 17 exercises to build strength.
• You don't need six different training methods.
• You don't need to constantly change your program.

You need the right stimulus.

Then you need to recover.

Then you need to repeat it.

Nutrition works the same way.

You don't need 47 recipes.

You need a nutritional structure that works.

Then you need to repeat it.

That's where results come from.

• Not novelty.
• Not complexity.
• Consistency.

Final Thought

The best P.E.P. isn't the one with the most variety.

And it isn't necessarily the one with the least.

It's the one with the least unnecessary variety.

That's Minimum Effective Variety.

• Build a nutritional foundation.
• Prioritize protein.
• Manage carbohydrates.
• Make friends with fat.
• Eat enough nutrient-dense plant foods.
• Control your energy intake according to your goal.

Then eliminate as much unnecessary decision-making as possible.

Make the good choice the easy choice.

Make the routine automatic.

And give yourself enough flexibility that you can actually live your life.

Because the ultimate goal isn't to create the most impressive diet on paper.

It's to create a way of eating that you can execute today, tomorrow, next month, and five years from now.

The best P.E.P. isn't the one you can follow perfectly for two weeks.

It's the one you can follow consistently for years.

That's Truth Not Trends

FAQ

Q: Is TNT saying I should eat the same foods every day?

A: No. TNT recommends finding your Minimum Effective Variety—enough variety to provide nutritional adequacy and enjoyment, without adding unnecessary complexity.

Q: Isn't variety important for good nutrition?

A: Yes. Dietary diversity can contribute to nutritional adequacy, particularly when it means consuming a broader range of nutritious foods. But diversity is not synonymous with an unlimited number of foods, recipes, or daily choices.

Q: Does eating less variety cause more weight loss?

A: We don't know. The evidence does not establish that a deliberately low-variety diet causes superior long-term weight loss. Research does suggest that greater food variety can increase food and energy intake under some circumstances, while dietary self-monitoring and adherence are important components of successful weight-management interventions.

Q: So why emphasize simplicity?

A: Because simplicity can reduce the number of decisions required to execute a P.E.P. consistently. TNT considers that a practical advantage—not a proven independent mechanism of fat loss.

Q: What is Minimum Effective Variety?

A: It is the smallest practical amount of food variety that allows an individual to meet nutritional requirements, enjoy their diet, and maintain the plan consistently.

Q: How do I know if my P.E.P. has too little variety?

A: Look for nutritional gaps, inadequate fiber or micronutrient intake, boredom, food aversion, or repeated departures from the plan. If simplicity is making adherence worse, you need more variety.

Q: How do I know if my P.E.P. has too much variety?

A: If you're constantly making food decisions, buying large numbers of ingredients, preparing complicated meals, struggling with portions, or using "healthy variety" as an excuse to continually eat, simplifying may help.

Q: Does TNT recommend tracking food?

A: Tracking can be useful, particularly when establishing portions and understanding energy and protein intake. Research supports dietary self-monitoring as a useful component of many behavioral weight-loss interventions, although adherence and outcomes vary considerably between individuals and interventions.

References:

• Embling R, Pink AE, Gatzemeier J, et al. Effect of food variety on intake of a meal: a systematic review and meta-analysis. The American Journal of Clinical Nutrition. 2021;113(3):716–741. doi:10.1093/ajcn/nqaa352.
• Raber M, Liao Y, Rara A, et al. A systematic review of the use of dietary self-monitoring in behavioural weight loss interventions: delivery, intensity and effectiveness. Public Health Nutrition. 2021;24(17):5885–5913. doi:10.1017/S136898002100358X.
• Berry R, Kassavou A, Sutton S. Does self-monitoring diet and physical activity behaviors using digital technology support adults with obesity or overweight to lose weight? A systematic literature review with meta-analysis. Obesity Reviews. 2021;22(10):e13306. doi:10.1111/obr.13306.
• Patel ML, Wakayama LN, Bennett GG. Self-Monitoring via Digital Health in Weight Loss Interventions: A Systematic Review Among Adults with Overweight or Obesity. Obesity. 2021;29(3):478–499. doi:10.1002/oby.23088.
• Verger EO, Le Port A, Borderon A, et al. Dietary Diversity Indicators and Their Associations with Dietary Adequacy and Health Outcomes: A Systematic Scoping Review. Advances in Nutrition. 2021;12(5):1659–1672. doi:10.1093/advances/nmab009.
• Mozaffari H, Hosseini Z, Lafrenière J, Conklin AI. The role of dietary diversity in preventing metabolic-related outcomes: Findings from a systematic review. Obesity Reviews. 2021;22(6):e13174. doi:10.1111/obr.13174.
• Morton RW, Murphy KT, McKellar SR, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine. 2018;52(6):376–384. doi:10.1136/bjsports-2017-097608.