I hear a lot of people say that weight loss is all about calories in/calories out but I also hear that you should avoid suger.
Weight loss is simple: calories in vs. calories out (CICO). This guy did it:
http://www.cnn.com/2010/HEALTH/11/08/twinkie.diet.professor/index.html
If you have a couple hours available, check out the "Fathead" documentary:
However, if you actually want to get in good shape & feed your body better, then you need to eat according to your macros. The 3 macros (macronutrients) are protein, carbs, and fats. Here's the basic formula:
Proteins + Carbs + Fats = Calories
If you want to get a bit more technical about it:
* 1 gram of protein = 4 calories
* 1 gram of carbs = 4 calories
* 1 gram of fat = 9 calories
So that's the magic formula for coming up with a calorie count. In a normal, healthy adult, you need all 3 macros to feed your body properly. Now, imagine if you just ate Twinkies all day, but followed CICO instead of Macros...sure, you could still lose weight, but that's all carbs - you'd be neglecting your protein & fat intake. Macros is a better approach than CICO because then you're giving your body a better fuel story. The best macro calculator is available here: (note: requires an email address to get your numbers, recommend using a dummy email; also, they sell personalized coaching & meal plans, which are not required - the calculator is free)
https://iifym.com/iifym-calculator/
IIFYM, also known as "flexible dieting", means you can eat anything you want "if it fits your macros". That means there are no cheat meals or cheat days & no guilt to deal with. Now, that's not a free pass to eat junk food 24/7, because that will probably melt your insides over time, but it does mean you can enjoy some donuts or ice cream or whatever & still get results, like this lady did:
https://nicolecapurso.com/2014/08/31/how-donuts-gave-me-abs-an-80kg-snatch/
So sugar = carbs, which is just another macro. If you have 300 grams of carbs available for the day and you eat 600 grams of sugar, then obviously you're not going to get the results you want over time if you keep doing that day after day. But should you
avoid sugar? I mean, anything with carbs contains sugar - pasta, bread, fruit, etc. - not just candy, soda, and junk food. Notice earlier I mentioned that a normal, healthy adult requires all 3 macros to feed your body properly; if you have insulin issues (diabetes, PCOS, etc.), then you're going to need to adjust the carbs. If you have kidney issues, then you're going to need to adjust the protein. If you have ulcerative colitis, then eating fatty foods may trigger a flare-up. You have to adjust your macros to your body's particular situation.
Barring a particular health situation like that, then if you want to get in great shape, I would recommend eating according to your macronutrient requirements. You only have 3 options when eating against a plan, whether it's CICO or IIFYM:
1. Gain weight
2. Maintain weight
3. Lose weight
If you want to build muscle, then you'd set your macros to gain weight. If you want to keep what you have, then you'd set your macros to maintain your weight. If you want to lose fat, then you'd set your macros to lose weight. It's not exactly rocket science...you don't need fancy supplements or superfoods or anything like that. It took me a long time to figure all of this out because there's so much misinformation out there. I started into H&F back in 2008 (there's a bunch of threads of mine throughout the years floating around). I started out with the "clean eating approach", where I blindly ate what I perceived to be "healthy food": plain chicken, broccoli, brown rice, sweet potatoes, etc. I felt better & I got results over time, but because of CICO, not because of any magical properties inherent to eating meat & vegetables.
Over time, I experimented with many dietary approaches: paleo, keto, vegetarian, vegan, raw vegan, fruitarian, and even complete foods (liquid diet, a la Soylent). They all worked fine, because they all worked off CICO. The best results I have ever gotten, however, have been on IIFYM, which is where I eat whatever I want, but I eat according to my daily macro numbers every day. Again, that isn't a license to eat crap food non-stop, but it means I can have dessert after dinner every day & still stay in great shape. So regarding food in general:
1. If your only goal is to lose weight, then sure, go the CICO route
2. If you want to feel good & look good, then go the IIFYM route
3. If you want to feel great & look great, then go the IIFYM route & follow a proven workout routine
So to break your original question up into two pieces:
1. Weight loss
2. Sugar
Weight loss is simply CICO, but CICO is a dumb approach for your health. IIFYM is a million times better, because then you're feeding your body properly. You only have three choices regarding your weight: lose, maintain, or gain. You can literally do this simply by eating by the numbers. Regarding sugar, sugar = carbs. Carbs is one of the three macros. So sugar is just another macro. If you consume it within the constraints of (1) your weight management goal (lose/maintain/gain), and (2) within your macros (rather than CICO), then barring something like an insulin problem (such as pre-diabetes, diabetes type II, or diabetes type I), you'll be just fine.
People make the argument that it's easier to consume calories when doing something like drinking soda (sugar), and sure, that is
partially true...but if you don't have a weight goal (lose, maintain, gain) and you aren't tracking your macros, then you're going to get slower & less-great results than if you were to simply track your macros & eat according to your macros for your weight goal. It's really not that hard, and it took me many years to realize how simply it really is. Speed-wise, you don't want to lose more than about two pounds a week on average for a healthy weight-loss approach. One reason is that you risk getting "loose skin" (go ahead & do google image search for that!). One of my old roommates lost 150 pounds in 6 months (6.25 pounds lost per week, on average) & ended up with over six inches of loose skin on his belly. It took a long, long time for his skin to normalize again, because he lost weight too fast.
A lot of people don't like to hear the "max 2 pounds a week" thing for weight loss, because it's easy to get impatient & want to get skinny fast! The problem is that it's not just about getting skinny, it's about
staying thin. Without improved eating habits, most people just go right back to being overweight. That doesn't mean that you have to follow IIFYM forever, but personally, I do, for several reasons:
1. IIFYM is the most efficient way to lose weight in a healthy manner.
2. IIFYM forces me to do meal prep (because I don't want to be doing math all day, every day - I figure it out ahead of time, lol), which means I actually
eat, instead of running out the door in the morning skipping breakfast, or being so busy that I work through lunch.
3. IIFYM lets me eat a varied diet...I still enjoy fast-food & stuff from the vending machine, as well as home cooking. Eat whatever you want, If It Fits Your Macros!
Yes, it is annoying to have to weigh food & count your macros. But, I feel great, I look great, and it's also helped (forced) me to learn how to cook, which has ended up saving me a ton of money in my budget (literally hundreds of dollars a month). I mean, think about the metrics involved:
1. You have to eat basically every day for the rest of your life
2. You & only you are responsible for how you feed your body; no one is holding a gun to your head
3. If you eat 3 square meals a day, then you are on the hook for 21 meals a week - what's your plan for that? Especially if you want to lose weight & keep it off permanently?
Some other benefits of macros include:
1. There are no special foods to buy
2. There are no special supplements to buy
3. There is no special diet to follow - it's not vegan or keto or paleo (but it can be, if you want to it be!), it's just numbers
4. No one is trying to sell you anything special...set your goal (gain/maintain/lose), get your numbers from a calculator (daily requirements for protein/carbs/fats), and setup your diet to meet that every day. You're in charge of what you eat, and that's all there is to the whole system!
Hop on the Facebook group sometime & spend an hour or two scrolling through & seeing the before & after pictures:
https://www.facebook.com/groups/iifym/
Nutrition doesn't have to be complex. Total meatheads get in great shape at the gym all the time.
My recommendation goes like this:
1. Decide what your goals are. Specifically, decide on what type of body you want to have: lean, muscular, bodybuilder, powerlifter, etc. This will allow you to tailor your actions towards specific goals. You don't have to be a gym rat if you don't want to be!
2. Decide if you want to lose weight, maintain your weight, or gain weight. Use the IIFYM calculator to get your macro numbers.
3. Create a diet approach to allow you to hit your macros accurately every day, whether this involves fast food (chains like BK all have their macros available on their websites) or cooking at home or whatever.
4. Select a proven workout plan to achieve the body you want (personally I am a huge fan of calisthenics bodybuilding, aka bodyweight workouts - no gym required!). At bare minimum, check out the
American Heart Association's recommendations
So that's the weight-loss story: if you want to lose weight, make it easy on yourself & go the fastest & most efficient route for proper fat loss - eat according to your macros! Don't give up your favorite foods, just eat within your macros! One extra note: meal timing doesn't matter. I've done one meal a day (just dinner - for over a year) & I've done 7 small "meals" throughout the day. Aside from a few weeks of having to adjust to the new eating schedule, both yielded the same results. The bottom line is your macro intake within each 24-hour "day" period of time. Set your weight goal (lose/maintain/gain), get your macros, eat according to your macros strictly & consistently over time, and you WILL get results!
Here's a simple way to look at it:
I didn't get in shape because (insert excuse here).
IIFYM removes the excuses: it tells you exactly what to do (eat according to your macro numbers) for your goals (lose/maintain/gain) as well as what to eat (anything you want, If It Fits Your Macros!) & when to eat (whenever you want!). You can project out your weight-loss target pretty easily as well (max of ~2 pounds per week). All that's left is to pick a goal, run the calculator, and setup your kitchen or food purchasing plan to meet your daily numbers so that you actually stick with it over time. RIP to boring, bland foods or fad diets!