How it works Atkins 20 Phase 1
Atkins 20
Phase One Overview: Beginning a Low Carb Diet
PHASE ONE LOW CARB DIET TIPS
PHASE ONE OVERVIEW: BEGINNING A LOW CARB DIET
PHASE ONE FACTS ON WEIGHT LOSS
PHASE ONE TRANSITION
Phase 1 is all about changing the way your body uses nutrients, so these first few weeks will be essential to your weight loss journey. See details below on Induction and how to get started with your low carb diet.
A minimum of two weeks, but you may safely follow it for much longer if you have a lot of excess weight to lose or prefer to lose most of your excess pounds relatively quickly. You’ll stay in this phase until you’re 15 pounds from goal weight.
Shift your body from burning primarily carbs to burning primarily fat, kick-starting weight loss.
Significantly drop your daily Net Carb intake to an average of 20 grams (no less than 18 and no more than 22) of Net Carbs, the level at which almost anyone begins to burn primarily fat.
10 DIET TIPS FOR WEIGHT LOSS
Never starve yourself or go more than three or four waking hours without eating. If you prefer, have five or even six small meals. You never want to allow yourself to become ravenously hungry. That can open the door to eating whatever’s at hand. Not a good idea!
Of these, 12–15 grams should be in the form of foundation vegetables. It’s fine to average 20 grams a day over several days, but don’t go below 18 grams or above 22 on a single day. Dropping below 18 probably won’t make you lose weight any faster and is unlikely to satisfy your vegetable requirement. Going above 22 could interfere with triggering weight loss. Select carb foods from the list of Phase 1 acceptable foods.
Learn more about net carbs and how to calculate them to get the most out of your diet.
As you now know, protein plays a key role in weight loss and protects lean muscle mass, so you lose only fat. A useful tip to follow on Atkins 20, Phase 1 is to consume three 4-6 ounce servings each day
Consuming fat is essential to slimming down on Atkins. Fat also heightens the flavor of foods and enables your body to absorb certain vitamins. Always accompany a carb snack with either fat or protein. For example, have cucumber slices with a piece of cheese. Consume 3T of added fat daily.
Two of these can be replaced with coffee or tea. Another 2 cups can be replaced with beef, chicken, or vegetable broth (not the low sodium kind).
An important tip to remember during Phase 1 is the initial loss of water weight is normal, but it can lead to light-headedness and rob you of your energy. These symptoms disappear once you’re burning primarily fat, but in the meantime, be sure to consume sufficient salt in the form of salty broth, salt, tamari, or soy sauce.
Read food labels carefully, particularly on condiments. In restaurants, ask for oil and vinegar to dress your salad, request sauces on the side, and feel free to ask the server what’s in a dish.
That means no more than three packets a day.
Atkins® products are formulated to reduce the impact on your blood sugar level. The majority of Atkins® products can be suitable for Phase 1, as long as you don’t sacrifice the intake of foundation vegetables (12 to 15 net carb daily requirement) and count the net carbs in your daily net carb count. If you are in Induction, you have 5 to 8 grams of net carbs to use for dairy, dressings, or Atkins products. You can plan accordingly.
Eat nothing that isn’t on the list of Phase 1 acceptable foods, unless you plan to continue on Phase 1 for longer than two weeks. If so, then it is acceptable to add nuts and seeds.
- Flounder
- Herring
- Salmon
- Sardines
- Sole
- Tuna
- Trout
- Cod
- Halibut
- Cornish hen
- Chicken
- Duck
- Goose
- Pheasant
- Quail
- Turkey
- Ostrich
- Clams
- Crabmeat
- Mussels*
- Oysters*
- Shrimp
- Squid
- Lobster
- Bacon*
- Beef
- Ham*
- Lamb
- Pork
- Veal
- Venison
- Deviled
- Fried
- Hard-boiled
- Omelets
- Poached
- Scrambled
- Soft-boiled
- Butter
- Mayonnaise – make sure it has no added sugar
- Olive oil
- Vegetable oils – Those labeled “cold pressed” or “expeller pressed” are especially good and olive oil is one of the best:
- Canola
- Walnut
- Soybean
- Grape seed
- Sesame
- Sunflower
- Safflower
- Sucralose
- Saccharine
- Stevia
- Clear broth/ bouillon (make sure it has no sugars added)
- Club soda
- Cream, heavy or light
- Decaffeinated or regular coffee and tea*
- Diet soda (be sure to note the carb count)
- Flavored seltzer (must say no calories)
- Herb tea (without added barley or fruit sugar added)
- Unflavored soy/almond milk
- Water – at least eight 8-ounce glasses per day including:
- Filtered water
- Mineral water
- Spring water
- Tap water
Our low carb food list is an easy guide to your Phase 1 low carb eating plan. Most fish, poultry, and meat do not contain carbs so you can feel free to enjoy them, but use this list of low carb foods to be sure you are getting your 12 to 15 grams of net carbs in vegetables as well.**
*Oysters and mussels are higher in carbs so limit to about 4 ounces per day.
*Some processed meat, bacon, and ham is cured with sugar, which will add to the carb count. Avoid cold cuts and other meats with added nitrates, if possible.
Eggs are one of nature’s most nutritious creations. That’s why eggs are a staple breakfast in the Atkins Nutritional Approach.
Feel free to get creative with your eggs: Add mushrooms and onions, or even green pepper. Top the dish off with feta cheese or add basil, oregano and other herbs.
Consuming a healthy amount of fat is an important part of Atkins. There are no carbs here, but keep in mind that the recommended daily intake for added fats is 2-4 tablespoons daily. Do not allow any oils to reach overly high temperatures when cooking, and use olive oil for sautéing only. Use walnut or sesame oil to dress cooked veggies or salad, but not for cooking.
Limit your sugar substitutes to no more than three packets a day. One packet equals 1 gram of net carbs.
Pay close attention to your beverages, as they are often a major source of hidden sugars and carbs. It is important to drink at least 64 ounces of water a day during Atkins 20, Phase 1. Drinking enough fluid assists with weight loss and is essential to maintaining good health.
* One to two cups of caffeinated tea or coffee is allowed as desired and tolerated by each individual.
Net Carbs
New Serving Size
0.2
1 TBSP
Parmesan, grated
0.3
1 oz
Goat, chevre
0.4
2 TBSP
Bleu cheeses
0.4
1 oz
Cheddar
0.6
1 oz
Gouda
0.6
1 oz
Mozzarella, whole milk
0.8
2 TBSP
Cream cheese, whipped
0.9
1 oz
Parmesan, chunk
1
1 oz
Swiss
1.2
1 oz
Feta
Keep in mind that cheese does contain carbs, about 1 gram per ounce, and we recommend consuming no more than 3-4 ounces of cheese per day. An ounce is about the size of an individually wrapped slice of American cheese or a 1-inch cube.
Net Carbs
New Serving Size
0
1/2 cup
Alfalfa sprouts (raw)
0.1
1/2 cup
Chicory greens (raw)
0.1
1/2 cup
Endive (raw)
0.1
1/2 cup
Escarole (raw)
0.1
5, each
Olives, green
0.1
1/2 cup
Watercress (raw)
0.2
1/2 cup
Arugula (raw)
0.2
1, each
Radishes (raw)
0.2
1/2 cup
Spinach (raw)
0.4
1/2 cup
Bok choy (cooked)
0.5
1/2 cup
Lettuce, average (raw)
0.6
1/2 cup
Turnip greens (cooked)
0.7
1 each
Heart of palm
0.7
5, each
Olives, black
0.7
1/2 cup
Radicchio (raw)
0.8
1/2 cup
Button mushroom (raw)
1
1, each
Artichoke (marinated)
1
1 stalk
Celery (raw)
1
1/2 cup
Collard greens (cooked)
1
1, each
Pickle, dill
1
1/2 cup
Spinach
1.2
1/2 cup
Broccoli rabe (cooked)
1.2
1/2 cup
Sauerkraut (drained)
1.3
1/2 fruit
Avocado, Haas
1.4
1/2 cup
Daikon radish, grated (raw)
1.5
2 TBSP
Red/white onion, chopped (raw)
1.5
1/2 cup
Zucchini (cooked)
1.6
1/2 cup
Cucumber, sliced (raw)
1.7
1/2 cup
Cauliflower (cooked)
1.8
1/2 cup
Beet greens (cooked)
1.8
1/2 cup
Broccoli (cooked)
1.8
1/2 cup
Fennel (raw)
1.8
1/2 cup
Okra (cooked)
1.8
1/2 cup
Rhubarb (raw)
1.8
1/2 cup
Swiss chard (cooked)
1.9
6 stalks
Asparagus (cooked)
1.9
3, each
Broccolini (cooked)
2.2
1/2 cup
Bell pepper, green, chopped (raw)
2.2
1/2 cup
Sprouts, mung beans (raw)
2.3
1/2 cup
Eggplant (cooked)
2.4
1/2 cup
Kale (cooked)
2.4
1/2 cup
Scallion, chopped (raw)
2.4
1/2 cup
Turnip (cooked)
2.5
1, each
Tomato, small (raw)
2.6
1/2 cup
Jicama (raw)
2.6
1, each
Portobello mushroom (cooked)
2.6
1/2 cup
Yellow squash (cooked)
2.7
1/2 cup
Cabbage (cooked)
2.9
1/2 cup
Green beans (cooked)
3
1/2 cup
Bell pepper, red, chopped (raw)
3.4
2 TBSP
Leeks (cooked)
3.4
2 TBSP
Shallot, chopped (raw)
3.5
1/2 cup
Brussel sprouts (cooked)
4
1/2 cup
Spaghetti squash (cooked)
4.6
10, each
Cherry tomato
4.6
1/2 cup
Kohlrabi (cooked)
4.7
1/2 cup
Pumpkin, mashed (cooked)
5.3
2 TBSP
Garlic, minced (raw)
5.4
1/2 cup
Snow peas (cooked)
8.6
1/2 cup
Tomato (cooked)
These vegetables are the nutrient-dense, higher-fiber foundation for the Atkins way of eating. Aim for 12-15g of net carbs from vegetables per day, which is equivalent to several cups depending on the net carb content of the variety you select. One cup of veggies is roughly the size of a baseball. Measure salad vegetables raw.
Net Carbs
New Serving Size
0
1/2 cup
Alfalfa sprouts (raw)
.1
1/2 cup
Chicory greens (raw)
.1
1/2 cup
Endive (raw)
.1
1/2 cup
Escarole (raw)
.1
5, each
Olives, green
.1
1/2 cup
Watercress (raw)
0.2
1/2 cup
Arugula (raw)
0.2
1, each
Radishes (raw)
0.2
1/2 cup
Spinach (raw)
0.4
1/2 cup
Bok choy (cooked)
0.5
1/2 cup
Lettuce, average (raw)
0.6
1/2 cup
Turnip greens (cooked)
0.7
1 each
Heart of palm
0.7
5, each
Olives, black
0.7
1/2 cup
Radicchio (raw)
0.8
1/2 cup
Button mushroom (raw)
1
1, each
Artichoke (marinated)
1
1 stalk
Celery (raw)
1
1/2 cup
Collard greens (cooked)
1
1, each
Pickle, dill
1
1/2 cup
Spinach (cooked)
1.2
1/2 cup
Broccoli rabe (cooked)
1.2
1/2 cup
Sauerkraut (drained)
1.3
1/2 fruit
Avocado, Haas
1.4
1/2 cup
Daikon radish, grated (raw)
1.5
2 TBSP
Red/white onion, chopped (raw)
1.5
1/2 cup
Zucchini (cooked)
1.6
1/2 cup
Cucumber, sliced (raw)
1.7
1/2 cup
Cauliflower (cooked)
1.8
1/2 cup
Beet greens (cooked)
1.8
1/2 cup
Broccoli (cooked)
1.8
1/2 cup
Fennel (raw)
1.8
1/2 cup
Okra (cooked)
1.8
1/2 cup
Rhubarb (raw)
1.8
1/2 cup
Swiss chard (cooked)
1.9
6 stalks
Asparagus (cooked)
1.9
3, each
Broccolini (cooked)
2.2
1/2 cup
Bell pepper, green, chopped (raw)
2.2
1/2 cup
Sprouts, mung bean (raw)
2.3
1/2 cup
Eggplant (cooked)
2.4
1/2 cup
Kale (cooked)
2.4
1/2 cup
Scallion, chopped (raw)
2.4
1/2 cup
Turnip (cooked)
2.5
1, each
Tomato, small (raw)
2.6
1/2 cup
Jicama (raw)
2.6
1, each
Portobello mushroom (cooked)
2.6
1/2 cup
Yellow squash (cooked)
2.7
1/2 cup
Cabbage (cooked)
2.9
1/2 cup
Green beans (cooked)
3
1/2 cup
Bell pepper, red, chopped (raw)
3.4
2 TBSP
Leeks (cooked)
3.4
2 TBSP
Shallot, chopped (raw)
3.5
1/2 cup
Brussel sprouts (cooked)
4
1/2 cup
Spaghetti squash (cooked)
4.6
10, each
Cherry tomato
4.6
1/2 cup
Kohlrabi (cooked)
4.7
1/2 cup
Pumpkin, mashed (cooked)
5.3
2 TBSP
Garlic (minced, raw)
5.4
1/2 cup
Snow peas (cooked)
8.6
1/2 cup
Tomato (cooked)
Net Carbs
New Serving Size
0
3 slices
Crumbled bacon
0.5
1 egg
Hard-boiled egg
1
1/2 cup
Sautéed mushrooms
1.2
2 Tbsp
Sour cream
(see above carb counts)
Grated cheeses
Net Carbs
New Serving Size
0
1 TBSP
Basil
0
1 TBSP
Cayenne pepper
0
1 TBSP
Cilantro
0
1 TBSP
Dill
0
1 TBSP
Oregano
0
1 TBSP
Tarragon
.1
1 TBSP
Parsley
.1
1 TBSP
Chives (fresh or dehydrated)
.8
1 TBSP
Ginger, fresh, grated
.8
1 TBSP
Rosemary, dried
.8
1 tsp
Sage, ground
.9
1 tsp
Black pepper
.9
1 clove
Garlic
Herbs and spices are a great way to enhance the flavor of your food. When shopping for dried or packaged herbs and spices, read the labels closely to make sure they contain no added sugar.
Net Carbs
New Serving Size
0
1 TBSP
Red wine vinegar
1
2 TBSP
Caesar
1.4
2 TBSP
Ranch
2.0
2 TBSP
Lemon juice
2.3
2 TBSP
Bleu cheese
2.4
2 TBSP
Lime juice
2.7
1 TBSP
Balsamic vinegar
3
2 TBSP
Italian, creamy
Read labels carefully. Any prepared salad dressing without added sugar, and no more than 3 grams of net carbs per serving, is acceptable in phase one. Or make your own!
No. You can start in any of the first three phases. If you have just a few pounds to lose, up to about 15, you can probably start in Phase 2 at 25 to 30 grams of Net Carbs a day. If you are heavier, you can also start here, but it may take a little longer to lose weight without the kick-start that you get in Phase 1. You can also begin in Phase 3 at, say, 40 grams of Net Carbs a day if you have less than 40 pounds to lose.
No. However, it’s unlikely that you’ll follow them to the letter day in and day out unless you eat every meal at home, so it’s a good idea to use the Atkins Carb Counter. Also, if you aren’t precise about serving size, you may be consuming more carbs than the meal plan indicates. In any case, it’s important to know how to count carbs (actually, grams of Net Carbs) as you start to add back more foods. Counting provides a double check that improves your likelihood of success from the start.
Not necessarily. If you’re having four or five small meals a day, you may not feel the need for snacks, but be very careful not to go more than four to six hours between meals. Instead, have a hot drink, perhaps a cup of broth.
The first few pounds you lose on any weight-loss program are primarily water, this seems to be a general weight loss fact to follow. Atkins particularly has a diuretic effect.
No. Eating excessive protein will make you sluggish and interfere with weight loss. Overeat fat and you’ll create a calorie bomb and may slow down weight loss.
Most people are borderline dehydrated all the time. Drinking enough fluid helps flush toxins from your body, combats constipation and bad breath, lubricates your joints, and is important to your overall health. Staying hydrated also assists with weight loss. Remember, some of your water requirement can be satisfied with coffee, tea, or other clear beverages, including broth.
Bacon is fine in moderation. Any residual sugar from the curing process in bacon, ham, or other pork products is burned off when you cook it.
This is a very common question individuals ask when starting the first phase of Atkins 20. Cooking compacts vegetables such as spinach or cabbage significantly. Carb counts reflect the cooked amount. Chopping or grating a vegetable also compacts it more than slicing does, and that impacts the carb count as well.
Yes, as long as you get your quota of foundation vegetables and don’t exceed your Net Carb daily limit. A dessert should contain no more than 3 grams of Net Carbs per serving. An Atkins Endulge bar or one of our dessert recipes is a good choice.
By maintaining a constant level of carb intake from day to day, you’re more likely to keep your blood sugar on an even keel. But a range of 3 or 4 grams of Net Carbs from one day to the next should not create a problem as long as your average intake is consistent. If you do overindulge one day, simply return to your current level the next day.
Doing so will mean that you’re consistently returning to a primarily blood sugar metabolism for two days. It’s a fact during Phase 1 that it takes several days to reignite your fat-burning engine. Stopping and starting, known as “carb cycling,” will lessen the likelihood that you’ll lose weight or keep it off.
Although the initial guidelines of Atkins advised individuals to eliminate caffeine without exception, the guideline has since been liberalized to advise avoiding excessive consumption and the guidelines include caffeine as desired and tolerated by each individual.
No. However, once you transition to Phase 2, you can consume moderate amounts of most alcoholic beverages, assuming it doesn’t interfere with weight loss.
You’re not just tracking your carb intake; you’re also aiming for a well-balanced meal plan full of vitamins and other nutrients provided by vegetables, along with fiber to help manage your hunger. One slice of bread might represent the balance of your daily carb intake in Phase 1, which would put your blood sugar back on the roller coaster.
The juicing process removes all or most of the fiber in fruit and vegetables, concentrating the sugar hit. You’ll be able to introduce tomato juice in Phase 2. In Phase 3, oranges and other citrus fruits are acceptable.
Strange as it may seem, milk is higher in carbs than cream, thanks to the lactose (a form of sugar). In Phase 2 you can reintroduce small amounts of whole milk. Or dilute cream with some water, if you prefer.
Most likely your blood sugar levels have not yet stabilized, which usually occurs after the fifth day on Atkins. Once you’re burning fat for energy, it acts as a natural appetite suppressant. Sometimes women have cravings right before their menstrual period. Or you may be going too long between meals or snacks, eating foods that contain hidden sugars or grains, or not consuming enough fat. When you experience cravings for high-carb foods, have an Atkins Advantage bar or shake, half a Hass avocado, some cheese, or some olives instead. Hunger and cravings can also be confused with thirst, so drink up.
It’s definitely easier to achieve any goal with someone who has your back. Find a buddy who wants to lose weight too, whether it’s your significant other, a friend or family member or someone in the Atkins Community. He/she can help you stay on track and achieve your goals.
- Continue to consume 20 grams of Net Carbs a day beyond the first two weeks.
- Try adding nuts and seeds to your list of acceptable foods. Nuts are full of protein and healthy fats and are relatively low in Net Carbs, thanks to their high fiber content.
After two weeks on Atkins, it’s decision time. Assuming you’ve been following the program correctly and have lost weight over the last two weeks, you can choose to remain in Phase 1 (Kick-Start) or transition to Phase 2 (Balancing).
THE FAST TRACK
If you’re motivated by quick weight loss and thrive on structure and a minimum of choices, you may choose to stay in Phase 1 beyond two weeks. To make this process easier, as well as set the stage for when you do decide to move on:
To make it easy, swap out 3 grams of Net Carbs from other foods, such as 1/2 cup of green beans, a smallish tomato, or 11/2 cups mixed greens, for 3 grams of nuts or seeds, but without letting your intake of foundation veggies dip below 12 grams of Net Carbs. (You’ll still have 5 grams for Atkins bars and shakes, sweeteners, dressings, or condiments.)
As a quick guide, 3 grams of Net Carbs of nuts or seeds translates to 30 almonds, 3 tablespoons macadamia nuts, 2 tablespoons peanut butter, 2 tablespoons pistachios, or 4 tablespoons shelled sunflower seeds; 24 walnut halves come in at 3.4 grams. Portion out nuts and seeds in advance to avoid overeating. A couple of tablespoons of walnuts, almonds, pecans, or pumpkin seeds make a great snack.
Transition to Phase 2 (Balancing) no later than when you’re within 15 pounds of your goal weight. At that point it’s time to start transitioning to a permanent way of eating by introducing foods higher up the Carb Ladder.Or top a salad with sunflower seeds or chopped walnuts. You can also now have other nut and seed butters (stuff them into celery sticks) or coconut, almond, and other nut flours (available in the baking section or specialty foods aisle of the supermarket).
SLOW AND STEADY
Alternatively, you may choose to lose the bulk of your weight in Phase 2 (Balancing). If you’re comfortable with a slower, steadier rate of weight loss, after two weeks (or a few more) start to climb the Carb Ladder. You begin adding Balancing foods in 5g increments. The gradual increase in Net Carb intake and reintroduction of new foods allows you to continue to shave off pounds and inches, maintain appetite control, and feel energetic. You’ll also gradually come to understand which, if any, foods trigger cravings for more of the same and/ or interfere with weight loss.
You may find that you’re comfortable at a relatively low level of Net Carbs a day, perhaps 25 to 35 grams, which is not all that different from Kick-Start but does allow you to eat such delicious, nutritious food as nuts and seeds and then berries, melon, and cherries. Next you’ll move on to Greek yogurt and fresh cheeses. Or you may find you can go considerably higher, say 50 or 60 grams of Net Carbs or even more, which will allow you to include legumes and some vegetable juices
The balancing process enables you to find what works for you. Understanding your carb tolerance is the bridge from a weight-loss diet to a diet for life.
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