Vegetarians following the keto diet could also run the risk of becoming deficient in certain nutrients, vitamins, and minerals. Three big ones: B12, iron, and omega-3 fatty acids. "B12 is largely found in animal products; heme-iron, which is most readily absorbed, is only obtained in animal products; and fish is a great source of omega-3s," explains Sharp. Unfortunately, those aren't the only elements at risk of being deficient. Zinc, an important antioxidant, most often comes from meat and poultry; calcium and vitamin D—two nutrients that are crucial for bone health—are mostly found in dairy products; and magnesium, another important nutrient for bone health (and energy) is typically ingested via grains, which are on the no-no list for vegetarian keto followers.
Ketogenic diets originated in the 1920s as a treatment for epilepsy, but they’ve since been credited for promoting a number of health benefits ranging from improved insulin sensitivity to everyday mental clarity, in addition to fast weight loss. Strict ketogenic—or “keto”—dieters limit carbohydrate intake to about 5% of their daily calories while keeping protein intake at around 20%. Fats, then, make up close to 75% of their calories. (For more details on setting up various ketogenic diets, see our guide HERE.)

Spaghetti squash is a smart addition to your keto diet because it strings apart and mimics true spaghetti so easily. Sliced in half lengthwise, remove the seeds and drizzle a healthy oil onto its open-faced side. Sprinkle with seasonings of your choice, and place face-down into a roasting pan to roast until it’s soft when pricked, and pulls apart into spaghetti-like strings when a fork is taken to it.

This way of consuming is hard to stay with because it combines two restrictive diets. Mass believes the dangers outweigh the advantages. But if making a decision to attempt it, Mass cautions to technique the food regimen cautiously, preferably below the guidance of a certified registered dietitian who will let you select your ingredients strategically and ensure you are supplementing the weight loss program in which wanted. Mass also shows lowering your carb intake regularly instead of going complete-blown vegetarian keto overnight so you don’t completely surprise your device. Finally "fake" weight loss results aren't just a problem of water fasting. Most quick weight loss diets on the market today take advantage of this as well.