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How Many Calories Should You Eat?

0h 08m video Transcribed Jun 30, 2026 R Renaissance Periodization
Beginner 2 min read For: Anyone new to fitness or nutrition who wants a simple, practical method to determine their maintenance calorie intake.
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AI Summary

Dr. Mike from Renaissance Periodization explains a simple, evidence-based method to determine your maintenance calories—the number needed to keep your current weight. He provides a starting formula, a 3-week adjustment process to refine it, and advice on how to keep maintenance accurate as your activity changes.

[00:49]
Basic formula for maintenance calories

Multiply your body weight in pounds by 15 to get a starting estimate for daily maintenance calories.

[02:02]
3-week adjustment method

Use a 3-week period: first 1.5 weeks, split into three 3- to 4-day blocks. At the end of each block, check weight trend. If trending up, cut calories by 250–500 (or 150–200 for smaller people). If trending down, add the same amount. If stable, no change.

[03:39]
Confirming maintenance target

After the first 1.5 weeks of adjustments, the remaining 1.5 weeks should show stable weight—this average confirms your maintenance calories.

[06:56]
Dynamic maintenance adjustments

If your weight trends down over about 2 weeks (e.g., due to increased activity), increase calories by 250–500; if trending up, decrease them. Reassess every 2 weeks to keep maintenance accurate.

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Tutorial Checklist

1 00:49 Multiply your body weight (in pounds) by 15 to get your estimated daily maintenance calories.
2 02:02 Plan to test this estimate over a period of 3 weeks.
3 03:00 For the first 1.5 weeks, divide that time into three 3- to 4-day blocks.
4 03:00 After each block, check if your weight trend is clearly up, down, or stable.
5 02:30 If weight is trending up, reduce daily calories by 250–500 (or 150–200 if you're smaller).
6 02:40 If weight is trending down, increase daily calories by the same amount.
7 03:22 If weight is stable, keep calories unchanged.
8 03:39 Continue this process for all three blocks of the first 1.5 weeks.
9 03:39 For the remaining 1.5 weeks, maintain the final adjusted calorie amount.
10 04:07 At the end, use the average weight over this second period as your confirmed maintenance calories.

Study Flashcards (6)

What does body weight (in pounds) multiplied by 15 estimate?

easy Click to reveal answer

Maintenance calories.

00:49

For a 200-pound person, what is the estimated maintenance calorie intake using the formula?

easy Click to reveal answer

3,000 calories per day.

01:00

Over what time period should you test your maintenance calorie estimate?

medium Click to reveal answer

3 weeks.

02:02

By how much should you adjust calories if your weight is trending up or down?

medium Click to reveal answer

250 to 500 calories (or 150–200 for smaller individuals).

02:30

How often should you check and adjust during the initial phase of testing?

hard Click to reveal answer

Every 3 to 4 days (for the first 1.5 weeks).

03:00

How frequently should you reassess maintenance calories if your activity levels change?

hard Click to reveal answer

Every 2 weeks.

06:56

💡 Key Takeaways

🔧

Simple maintenance formula

Provides an easy starting point for anyone to estimate their daily calorie needs.

00:49
🔧

3-week testing period

Explains a structured method to validate and refine the initial calorie estimate.

02:02
💡

Maintenance is dynamic

Highlights that maintenance calories need periodic adjustments due to changes in activity.

04:56
⚖️

Regular reassessment rule

Emphasizes checking weight trends every 2 weeks to keep maintenance accurate.

06:56

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[00:00] hey folks Dr Mike here for Renaissance

[00:01] periodization quick question for you how

[00:03] many calories should you be eating who

[00:06] knows I sure don't end video JK we

[00:10] actually have a super super simple

[00:12] formula it's barely a formula to tell

[00:14] you how many calories you should be

[00:16] eating because if you've ever scrolled

[00:18] through the internet comments about

[00:19] Fitness stuff there's always about five

[00:21] trillion people that are like bro how

[00:23] many calories should I be

[00:25] eating um I I do a kind of like a

[00:30] Russian middle eastern accent for those

[00:32] people I don't know why that's who I

[00:33] grew up with and that's who asked me

[00:34] real life questions about how many

[00:35] calories to eat good news from

[00:38] maintenance just for maintenance just to

[00:40] train and look cool and just be alive

[00:42] and be yourself but get the best

[00:43] performance how many calories should you

[00:45] have if you absolutely have no idea

[00:47] here's how to figure it out so you take

[00:49] your body weight in

[00:50] pounds and then you multiply it by 15

[00:53] and that's how many calories you should

[00:54] be eating in maintenance crazy right so

[00:57] if you at 200 lound you multiply x 15

[01:01] 3,000 calories a day that's it end video

[01:04] JK video is not over that it could be

[01:06] over you could just log off right now

[01:08] log off your internet machine because

[01:11] that's really simple as it has to be at

[01:13] first as a pretty good guess but hold on

[01:16] you certainly have problems with it but

[01:18] Dr Mike you say right now you just said

[01:21] it I heard you I'm Advanced I have way

[01:25] more activity than the average person a

[01:26] day or way less I sleep XYZ hours and I

[01:29] want that to to integrate I take X XYZ

[01:32] amount of subs or uh any other

[01:34] differences and I want to know my

[01:35] maintenance well the cool thing is is

[01:37] that a bunch of those things are

[01:38] actually handled by the Renaissance diet

[01:40] RP diet coach app weird we have an app

[01:43] for that but if you don't use our app

[01:45] how dare you not use our app you should

[01:46] be

[01:47] embarrassed no big deal if you don't use

[01:49] the app if you want to start at that

[01:53] guess of a maintenance level how do you

[01:55] make sure you're actually at the

[01:56] maintenance that you need and again the

[01:58] answer is super easy you just have to

[02:00] adjust it in the following Way 3 week

[02:03] time span is what you give yourself at

[02:04] least at maintenance to determine your

[02:06] maintenance calories right you're going

[02:07] to be maintenance for a while anyway so

[02:10] three weeks should be a part of that you

[02:11] take three weeks and for the first three

[02:15] days you average your first three days

[02:17] on that 3,000 calories whatever your

[02:19] maintenance is body weight multiplied by

[02:21] 15 and you find out if it's trending up

[02:24] or it's trending down or it's basically

[02:25] like the same if your body weight is

[02:28] trending up then you're going to cut

[02:30] your calories by somewhere between oh

[02:32] 250 to 500 because it's a little too

[02:35] many calories you cut them it goes back

[02:37] down if you are losing weight you need

[02:40] to increase calories by something like

[02:42] 250 to 500 now if you're much smaller

[02:45] than the average sort of uh listener of

[02:47] this stuff uh viewer I guess this is all

[02:49] video as well um maybe a few uh a little

[02:52] bit less so if you weigh like 150 PBS to

[02:55] 100 pound or less then maybe just

[02:57] increase or decrease by like 150 to 200

[03:00] calories per day okay you're going to do

[03:03] that every three days for basically

[03:05] three or four days for the first week

[03:06] and a half so the first week and a half

[03:08] you take half a week check go up or down

[03:11] next half week check go up or down now

[03:13] you don't have to go up or down you can

[03:14] just maintain because if for 3 days you

[03:16] basically like your weight is almost

[03:18] exactly maintaining like plus or minus

[03:20] 02 pounds or something just leave it

[03:22] alone and then the

[03:23] last of that half week the last half

[03:26] week you have 1.5 weeks the last third

[03:29] you do that again once you have done

[03:32] that hopefully the last week and a half

[03:34] of that 3-we period Should Be

[03:36] steady you take that last week and a

[03:39] half of that threee period the first

[03:40] week and a half was to fiddle the stuff

[03:42] just did that got a pretty good estimate

[03:44] at close to maintenance and now assuming

[03:48] that your body weight is roughly the

[03:49] same if it's still going up or down in

[03:51] that week and a half on net balance you

[03:53] can do this again but most of the time

[03:54] that last week and a half is going to be

[03:56] pretty steady it's going to fluctuate

[03:57] it's okay but the average is going to be

[03:59] more like where you want it to be where

[04:00] you started at first and once you get to

[04:03] that average that average number of

[04:05] calories in that last week and a half of

[04:07] this three we period is going to be

[04:09] probably your maintenance or at least a

[04:11] very very good guess at it and not just

[04:12] a guess but kind of an empirically

[04:14] backed guess because you actually tested

[04:16] it so again just to keep this super

[04:17] simple 3-e period chop it in half first

[04:21] week and a half chop that into thirds

[04:23] after every 3 or 4 day period you

[04:25] analyze to see if you're you're at the

[04:27] calories that you predicted you analyze

[04:29] to see if your weight is trending

[04:29] clearly up or clearly down if it's not

[04:31] clearly up or down don't do anything

[04:32] just keep the same calories if it's

[04:34] trending up cut calories a bit if it's

[04:36] trending down add some calories repeat

[04:38] that three times week first week and a

[04:39] half is over next week and a half begins

[04:41] whatever you ended with the last week

[04:43] and a half stay with that if it's nice

[04:45] and uh the average is really close then

[04:47] that week and a half is going to be what

[04:49] your maintenance calories are for the

[04:50] foreseeable future assuming you stay the

[04:51] same size it's that

[04:53] simple

[04:55] now once you get into maintenance there

[04:59] is no distinct guarantee that your

[05:02] weight even though it looked or was

[05:04] relatively flat on average over the last

[05:06] week and a half of testing if you're

[05:08] doing like let's say three months at

[05:09] maintenance or the rest of your

[05:11] foreseeable life at maintenance

[05:12] something like that you just want to

[05:13] know how many calories to eat so you can

[05:15] just have a Bas line and build a good

[05:16] diet or even if you do that for a few

[05:17] months and then you know start cutting

[05:19] calories to go hypocaloric and lose some

[05:21] fat or uh increase calories to gain some

[05:23] muscle there's no guarantee that

[05:25] maintenance stays your maintenance now

[05:27] there's a very good chance it's going to

[05:28] stay very close but sometimes are

[05:30] physical activity changes let me give

[05:31] you an example you estimated your

[05:33] maintenance in the winter time and like

[05:34] you weren't Super Active cuz fuck that

[05:36] it's cold outside you weren't s super

[05:39] aware of it who knows right you still

[05:40] work out the same still go to work still

[05:41] go to school your family still respects

[05:44] you you go to church good and you had a

[05:47] certain level of activity and you say

[05:48] 3,000 calories was great for you during

[05:50] the winter you change nothing you're

[05:51] still on maintenance summer months show

[05:53] up now you're in the summer and you're

[05:56] more active but you're not tracking it

[05:58] or writing it down cuz who the fuck does

[05:59] that right you're going to the beach

[06:00] you're throwing the Frisbee to the you

[06:02] guys want I throw throw the frisbee like

[06:04] this you take the Frisbee like a flat

[06:05] plate surface like this and you throw it

[06:07] this way that's how you actually

[06:08] supposed to throw frisbee it's not

[06:09] supposed to be an easy sport this shit

[06:11] right here this whatever fancy shit

[06:13] that's cheating in any case you're throw

[06:15] in frisbee is to dogs possibly to people

[06:17] and you are just burning more calories

[06:20] and you're sort of don't know so what

[06:21] you thought was your maintenance is now

[06:23] trending your weight like this you go

[06:25] shit shit here's the wrong thing to do

[06:27] and and think oh something's wrong this

[06:30] is my maintenance and I'm losing weight

[06:32] no joke people

[06:34] legitimately comment that shit on social

[06:36] media like hey uh anyone wants to answer

[06:39] this question I'm eating at maintenance

[06:41] and I'm still losing weight bullshit

[06:43] that is not happening not over the

[06:45] course of weeks there some body water

[06:46] shit can happen here and there but if

[06:48] you're losing weight you're not at

[06:49] maintenance and your maintenance needs

[06:50] to go up so at all times during what you

[06:53] plan as your maintenance if over oh

[06:56] about two weeks on average you're losing

[06:58] weight increasing calories by a bit

[07:00] maybe by like same amount 250 to 500

[07:03] calories maybe a little

[07:04] less if you are gaining weight you need

[07:06] to cut your calories so maintenance

[07:09] really is a dynamic process that every

[07:12] two weeks at least you should be

[07:14] checking into make sure you're on and

[07:17] sort of graphing your body weight if

[07:19] you're super meticulous about the shit

[07:21] and then it'll require possibly one of

[07:22] two things an update every two weeks to

[07:24] your diet just by a little bit or no

[07:26] update at all because everything's good

[07:28] and that's right the rest takes care of

[07:29] itself now you have a way to easily find

[07:31] your maintenance easily sort of guess

[07:34] and check kind of in an empirical

[07:35] fashion figure out much closer to what

[07:37] your maintenance really is and

[07:38] continuously update your maintenance

[07:40] calories so they stay your maintenance

[07:41] calories even though you're it's winter

[07:44] again but you're hanging out with polar

[07:45] bears and G wiiz they they get physical

[07:47] and they're play and if you want to stay

[07:49] alive you need more calories I don't

[07:51] fuck I ended the video like that anyway

[07:53] see you guys later I got math

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