"Sunflower seeds are a great snack option whether you follow a keto diet or not," says registered dietitian Katey Davidson, M.S., R.D. Although all sunflower seeds are an excellent source of healthy unsaturated fats, protein, and vitamin E, many companies use flavorings to season their products which can be high in both salt and sugar, says Davidson. She recommends Terrasoul Superfoods because they aren't flavored or salted. And with only 6 grams of carbs and 1 gram of sugar (per one 1/4 cup), you won't have to worry about these seeds throwing you out of your hard-earned ketosis. However, Davidson says you'll want to aim to eat just a handful of seeds, which is considered a serving. (Related: This keto smoothie recipe is delicious even without a ton of fruit.)
Wondering what fits into a keto diet — and what doesn’t? “It’s so important to know what foods you’ll be eating before you start, and how to incorporate more fats into your diet,” says Kristen Mancinelli, RD, author of The Ketogenic Diet: A Scientifically Proven Approach to Fast, Healthy Weight Loss, who is based in New York City. We asked her for some guidelines.
In contrast, multivitamins aren’t a good solution as they are synthetic and lack a lot of nutrients like polyphenols, antioxidants and fiber that green powders and whole food sources provide. And the lack of fats and enzymes make the nutrients they do contain very difficult to process properly. Just because you’re putting something in your body doesn’t mean your body can use it.
Ready to head out the door and start buying groceries? Slow down there, chief. Go through the pantry, fridge, freezer, and secret stashes under the bed, and get rid of foods with any significant carb content. In the first few days, you could end up craving them—badly. This means fruit, too. Even carrots and onions are too high-glycemic to work with keto, Wittrock says.
When you eat tons of carbs, your blood sugar is consistently elevated, and then so is insulin. Insulin is a hormone that keeps your blood sugar in check by shuttling the glucose into cells, but when there’s a consistently high amount of insulin, your cells become resistant. This insulin resistance makes it easier to store fat, and chronically high levels of insulin also cause excessive inflammation in the body, which contributes to heart disease, high blood pressure, and potentially type 2 diabetes.
The classic ketogenic diet is not a balanced diet and only contains tiny portions of fresh fruit and vegetables, fortified cereals and calcium-rich foods. In particular, the B vitamins, calcium and vitamin D must be artificially supplemented. This is achieved by taking two sugar-free supplements designed for the patient's age: a multivitamin with minerals and calcium with vitamin D. A typical day of food for a child on a 4:1 ratio, 1,500 kcal (6,300 kJ) ketogenic diet comprises:
Sweeney does not stick to a specific macronutrient balance when he begins his own ketogenic diet plan. Instead, he maintains a diet that includes no more than 50 grams of carbohydrate per day. When he goes over 0.6 on the ketone meter (a device used to measure blood for the presence of ketones) he goes up to 70 grams of carbohydrates and takes a ketone supplement.
You’re transitioning. Your body is equipped to process a high intake of carbs and a lower intake of fat. Your body needs to create enzymes to be able to do this. In the transitional period, the brain may run low on energy which can lead to grogginess, nausea, and headaches. If you’re having a large problem with this, you can choose to reduce carb intake gradually.