Some people group tomatoes with vegetables, but a tomato is actually a fruit. Low in fat but also carbs (with just 2.4 g of net carbs per ½ cup), tomatoes are also keto-friendly. The same serving size of tomatoes contains 2.4 g of sugar and 16 calories. Among their health benefits, tomatoes contain lycopene, which research suggests may help prevent heart disease.
Vitamin C is an important water-soluble vitamin we need for the biosynthesis of collagen, certain proteins, and neurotransmitters. Your brain also heavily relies on vitamin C for antioxidant defense. Adults generally need around 75-120 mg of vitamin C daily to maintain these functions [3]. The problem with vitamin C is that it degrades when exposed to heat and light, so unlike fruit, cooked vegetables are not the best source of this nutrient. 

Strawberries and currants have fairly high sugar content in the 7 to 9 gram-per-cup serving range. Cranberries and raspberries, on the other hand, only have between 4.5 and 5.5 grams. You should be aware that it's not just about sugar, though — the total carbs in raspberries come out to 14.7 grams per serving, while cranberries have 13.4 grams per serving. Despite this, it's easy to have half a serving of any of these berries as part of a dessert or morning smoothie and still be within keto diet parameters.
Milk—but not cheese—is off the list because it contains a lot of lactose, a form of sugar, which makes it high in carbohydrates. When cheese is made, all the sugar is eaten by bacteria and turned into lactic acid, cutting the carb content way down. Low- and reduced-fat dairy products are to be avoided as they’re overly processed, which strips out nutrients like the fatty acids that make you feel full. Plus, sugar is often added to make up for a loss of flavor and texture, so some actually have more sugar than full-fat dairy. Resist shredded cheese, too, as it contains a carby potato starch that keeps it from sticking together.
Pecans are my favorite in the fall-time. I love dry roasted pecans. They are easy to roast yourself, and they make your house smell amazing. To roast, first soak the nuts in water overnight. Then, drain and place on a baking sheet in the oven at 150 degrees Fahrenheit for 12-24 hours. Toss halfway and roast until the nuts are crunchy, and not soggy.
If you were drawn to the ketogenic diet because you were promised copious amounts of cheese,  no one would blame you. Cheese is delicious. However, “I’m on keto” does not mean you have carte blanche to eat three mozzarella cheese sticks plus a couple bites of cheddar followed by some shredded cheese eaten out of the bag in front of your fridge at midnight. It’s easy to fall into the trap of foods that are technically keto, but not good for optimizing your overall health. Like the aforementioned cheese. (And if you’re following the Bulletproof Diet or just want to feel like the most kickass version of yourself, it’s highly recommended to avoid cheese — more on that shortly.)
The gist of the eating plan? Taking in so few carbs sends your body into ketosis—a state of burning fat for energy, instead of carbohydrates or sugars, explains Beth Warren, RDN, founder of Beth Warren Nutrition and author of Secrets of a Kosher Girl: A 21-Day Nourishing Plan to Lose Weight and Feel Great (Even If You're Not Jewish). In order to stay in ketosis, you only consume 5% to 10% of your calories from carbohydrates—which for most followers is fewer than 20 grams total per day—and instead eat moderate amounts of protein and high amounts of fat.
This milk yogurt contains just 1 gram of net carbs, giving you a little wiggle room when it comes to carbohydrates. If you are craving additional sweetness, you can choose to sweeten your low carb yogurt with a keto-friendly sweetener, like stevia or monk fruit. You could also top with fresh fruit like blueberries or raspberries, avoiding high-carb fruits. Or, make a yogurt parfait with chia seeds and keto yogurt topped with homemade whipped cream, made with heavy whipping cream or coconut cream.

This recipe gives you one of the creamiest smoothies ever because it uses low-carb coconut yogurt and avocado. The flavor of the chocolate comes through really well, so this Keto drink would go down really well with the younger members of the family and can be a great way to get them off to a good start in the morning. The avocado adds healthy fats to the smoothie, so you will find it is filling too!
Lemons are going to help your body become better at absorbing iron which, in turn, will allow your muscles to become stronger and possibly prevent osteoporosis when you are older. Healthy bones are going to help your joints stay healthier as well. Everything is connected in your body and when you improve one thing, you are only helping something else.
If, on the other hand, you lower the amount of carbs in your diet and increase the amount of fats, your body will go into a state known as ketosis. This is the source of the name 'ketogenic' in 'ketogenic diet’. In this state, your liver will break fats in your diet down and produce ketones, an energy source. Your body would pretty much rather use glucose as a primary source of energy but, when forced to look for an alternative, it will resort to burning fat instead.
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