The science of food and glucose, explained simply.https://getpre.app/https://getpre.app/blog/do-apples-spike-blood-sugar/https://getpre.app/blog/do-apples-spike-blood-sugar/Apples have a low glycemic index (GI 36–40) and contain 19g of sugar per medium apple. Their pectin fiber and intact cell structure produce a slow, moderate glucose response.Mon, 09 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-artificial-sweeteners-spike-blood-sugar/https://getpre.app/blog/do-artificial-sweeteners-spike-blood-sugar/Most artificial sweeteners (stevia, aspartame, sucralose) do not directly spike blood sugar. They have a GI of 0. But some research suggests potential indirect effects on insulin and gut bacteria.Sun, 08 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-bananas-spike-blood-sugar/https://getpre.app/blog/do-bananas-spike-blood-sugar/Ripe bananas (GI 62) cause a moderate blood sugar spike. Green bananas (GI 42) spike much less because their starch hasn't converted to sugar yet.Sat, 07 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-beans-spike-blood-sugar/https://getpre.app/blog/do-beans-spike-blood-sugar/Beans are one of the lowest-GI starchy foods. Most beans (GI 24–40) spike blood sugar far less than rice, bread, or potatoes because their intact cell walls physically block enzyme access to starch.Fri, 06 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-berries-spike-blood-sugar/https://getpre.app/blog/do-berries-spike-blood-sugar/Berries are the lowest-sugar, lowest-GI fruits available. Strawberries (GI 40), blueberries (GI 53), and raspberries (GI 32) produce minimal blood sugar spikes per serving.Thu, 05 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-blueberries-spike-blood-sugar/https://getpre.app/blog/do-blueberries-spike-blood-sugar/Blueberries have a low glycemic index (GI 40–53) and contain 15g of sugar per cup. Their anthocyanins may improve insulin sensitivity, making them one of the best fruits for blood sugar.Wed, 04 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-carrots-spike-blood-sugar/https://getpre.app/blog/do-carrots-spike-blood-sugar/Carrots have a moderate glycemic index (GI 39–47) but a very low glycemic load (GL 2) because they contain very few carbs per serving. A whole carrot has only 4g of net carbs.Tue, 03 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-cashews-spike-blood-sugar/https://getpre.app/blog/do-cashews-spike-blood-sugar/Cashews have a low glycemic index (GI 22–27) but contain more carbs than most nuts (8g per ounce). They spike minimally but are not as blood sugar-friendly as almonds or walnuts.Mon, 02 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-chickpeas-spike-blood-sugar/https://getpre.app/blog/do-chickpeas-spike-blood-sugar/Chickpeas have a low glycemic index (GI 28–36) despite being carbohydrate-rich. Their resistant starch, protein, and fiber produce a slow, flat glucose response.Sun, 01 Mar 2026 00:00:00 GMThttps://getpre.app/blog/do-dates-spike-blood-sugar/https://getpre.app/blog/do-dates-spike-blood-sugar/Dates have a low-to-moderate glycemic index (GI 35–55) despite being 66% sugar by weight. Their high fiber, fructose content, and dense matrix slow glucose absorption.Sat, 28 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-eggs-affect-blood-sugar/https://getpre.app/blog/do-eggs-affect-blood-sugar/Eggs have virtually zero effect on blood sugar. They contain less than 1 gram of carbohydrate per egg and have a glycemic index of essentially 0. Eggs eaten before carbs can reduce the spike by 25–35%.Fri, 27 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-grapes-spike-blood-sugar/https://getpre.app/blog/do-grapes-spike-blood-sugar/Grapes have a moderate glycemic index (GI 46–59) and contain 23g of sugar per cup. Red and black grapes spike slightly less than green due to higher polyphenol content.Thu, 26 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-lentils-spike-blood-sugar/https://getpre.app/blog/do-lentils-spike-blood-sugar/Lentils have one of the lowest glycemic indexes of any starchy food (GI 21–32). Their combination of resistant starch, protein, and fiber produces minimal blood sugar spikes.Wed, 25 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-nuts-affect-blood-sugar/https://getpre.app/blog/do-nuts-affect-blood-sugar/Nuts have virtually no effect on blood sugar. Most nuts have a glycemic index near 0 and contain 2–6g of net carbs per ounce. Eating nuts with carbs reduces the spike by 20–30%.Tue, 24 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-onions-spike-blood-sugar/https://getpre.app/blog/do-onions-spike-blood-sugar/Onions have a very low glycemic index (GI 10–15) and contain only 7g of sugar per medium onion. Quercetin in onions may modestly improve insulin sensitivity.Mon, 23 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-peanuts-spike-blood-sugar/https://getpre.app/blog/do-peanuts-spike-blood-sugar/Peanuts have a very low glycemic index (GI 7–21) and contain only 6g of carbs per ounce. Their high fat and protein content makes them one of the best snacks for blood sugar.Sun, 22 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-potatoes-spike-blood-sugar/https://getpre.app/blog/do-potatoes-spike-blood-sugar/Potatoes are one of the highest-GI common foods. A baked russet potato (GI 78–111) can spike blood sugar more than white bread. Cooling potatoes after cooking reduces the spike by 25–30%.Sat, 21 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-protein-bars-spike-blood-sugar/https://getpre.app/blog/do-protein-bars-spike-blood-sugar/Protein bars range from GI 25 to 70+ depending on ingredients. Many 'protein' bars contain 20-30g of sugar — as much as a candy bar. Low-sugar options with sugar alcohols spike minimally.Fri, 20 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-smoothies-spike-blood-sugar/https://getpre.app/blog/do-smoothies-spike-blood-sugar/Most smoothies spike blood sugar significantly. A typical fruit smoothie delivers 40-70g of sugar in liquid form with destroyed fiber. Adding protein and fat dramatically reduces the spike.Thu, 19 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-strawberries-spike-blood-sugar/https://getpre.app/blog/do-strawberries-spike-blood-sugar/Strawberries have a low glycemic index (GI 25–40) and contain only 7g of sugar per cup. They are one of the best fruits for blood sugar management.Wed, 18 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-sweet-potatoes-spike-blood-sugar/https://getpre.app/blog/do-sweet-potatoes-spike-blood-sugar/Sweet potatoes have a moderate glycemic index (GI 44–94) that varies dramatically by variety and cooking method. Boiled sweet potatoes (GI 44) spike far less than baked (GI 94).Tue, 17 Feb 2026 00:00:00 GMThttps://getpre.app/blog/do-tomatoes-spike-blood-sugar/https://getpre.app/blog/do-tomatoes-spike-blood-sugar/Tomatoes have a very low glycemic index (GI 15) and contain only 3.2g of sugar per medium tomato. They are one of the most blood sugar-friendly foods available.Mon, 16 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-agave-spike-blood-sugar/https://getpre.app/blog/does-agave-spike-blood-sugar/Agave nectar has a low glycemic index (GI 15–30) because it is 75–90% fructose. But high fructose consumption promotes liver fat, insulin resistance, and metabolic syndrome.Sun, 15 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-alcohol-affect-blood-sugar/https://getpre.app/blog/does-alcohol-affect-blood-sugar/Alcohol has a complex effect on blood sugar — it can both spike it (from mixers and beer) and crash it (by blocking liver glucose production). The combination can be dangerous.Sat, 14 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-alcohol-spike-blood-sugar/https://getpre.app/blog/does-alcohol-spike-blood-sugar/Alcohol has a complex effect on blood sugar: it can cause both spikes and dangerous drops. Beer (GI 66) spikes, while wine and spirits have minimal direct glucose impact.Fri, 13 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-almond-milk-spike-blood-sugar/https://getpre.app/blog/does-almond-milk-spike-blood-sugar/Unsweetened almond milk has a GI near 0 and contains less than 1g of sugar per cup. It is one of the most blood sugar-friendly milk alternatives available.Thu, 12 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-apple-cider-vinegar-lower-blood-sugar/https://getpre.app/blog/does-apple-cider-vinegar-lower-blood-sugar/Apple cider vinegar can reduce blood sugar spikes by 20–35% when consumed before or with a carb-rich meal. The acetic acid slows gastric emptying and inhibits starch digestion.Wed, 11 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-avocado-affect-blood-sugar/https://getpre.app/blog/does-avocado-affect-blood-sugar/Avocado has virtually no effect on blood sugar. A whole avocado contains less than 4 grams of net carbs and has a glycemic index near 0. Avocado eaten with carbs reduces the spike by 20–30%.Tue, 10 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-beer-spike-blood-sugar/https://getpre.app/blog/does-beer-spike-blood-sugar/Beer has a high glycemic index (GI 66–110) and is the most glucose-spiking alcoholic drink. A pint of regular beer delivers 13–20g of carbs, and alcohol blocks the liver's glucose regulation.Mon, 09 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-bread-spike-blood-sugar/https://getpre.app/blog/does-bread-spike-blood-sugar/White bread (GI 75) is one of the fastest-spiking common foods. Sourdough (GI 54) and whole grain bread (GI 51) spike significantly less due to intact structure and organic acids.Sun, 08 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-brown-rice-spike-blood-sugar/https://getpre.app/blog/does-brown-rice-spike-blood-sugar/Brown rice has a moderate glycemic index (GI 50–66) — lower than white rice (GI 72–83) but still a significant carbohydrate source with 45g of carbs per cup.Sat, 07 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-butter-affect-blood-sugar/https://getpre.app/blog/does-butter-affect-blood-sugar/Butter has a glycemic index of 0 and contains no carbohydrates. It does not spike blood sugar directly, but adding butter to high-carb foods can reduce their glycemic response by 20-30%.Fri, 06 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-cereal-spike-blood-sugar/https://getpre.app/blog/does-cereal-spike-blood-sugar/Most breakfast cereals have a glycemic index of 70–85, making them one of the fastest-spiking foods you can eat. Even 'healthy' cereals like bran flakes and granola often spike significantly.Thu, 05 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-cheese-affect-blood-sugar/https://getpre.app/blog/does-cheese-affect-blood-sugar/Cheese has virtually no effect on blood sugar. Most cheeses contain less than 1 gram of carbs per ounce and have a glycemic index near 0. Cheese eaten before carbs reduces the spike by 20–30%.Wed, 04 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-chicken-affect-blood-sugar/https://getpre.app/blog/does-chicken-affect-blood-sugar/Chicken has virtually zero effect on blood sugar. It contains no carbohydrates, has a glycemic index of 0, and its high protein content actually helps reduce spikes from other foods.Tue, 03 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-chocolate-spike-blood-sugar/https://getpre.app/blog/does-chocolate-spike-blood-sugar/Dark chocolate (70%+ cacao, GI 23) causes a very small blood sugar spike. Milk chocolate (GI 42–49) spikes moderately. White chocolate and candy bars spike the most.Mon, 02 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-cinnamon-lower-blood-sugar/https://getpre.app/blog/does-cinnamon-lower-blood-sugar/Cinnamon may modestly reduce fasting blood sugar by 10–25 mg/dL in people with type 2 diabetes. The effect is real but small, equivalent to a dietary change, not a medication.Sun, 01 Feb 2026 00:00:00 GMThttps://getpre.app/blog/does-coconut-milk-spike-blood-sugar/https://getpre.app/blog/does-coconut-milk-spike-blood-sugar/Unsweetened coconut milk has a very low glycemic index (GI 0–15) and contains only 1–2g of carbs per cup. But sweetened varieties can contain 10–15g of added sugar.Sat, 31 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-coconut-oil-affect-blood-sugar/https://getpre.app/blog/does-coconut-oil-affect-blood-sugar/Coconut oil has a glycemic index of 0 and contains no carbohydrates. It does not spike blood sugar directly. Its medium-chain triglycerides (MCTs) may modestly improve insulin sensitivity.Fri, 30 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-coconut-sugar-spike-blood-sugar/https://getpre.app/blog/does-coconut-sugar-spike-blood-sugar/Coconut sugar (GI 54) spikes blood sugar slightly less than table sugar (GI 65), but it is still sugar. It contains the same calories, similar fructose content, and no meaningful nutritional advantage.Thu, 29 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-coconut-water-spike-blood-sugar/https://getpre.app/blog/does-coconut-water-spike-blood-sugar/Coconut water has a low glycemic index (GI 16–35) but contains 11–15g of sugar per cup. It spikes less than fruit juice but significantly more than plain water.Wed, 28 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-coffee-affect-blood-sugar/https://getpre.app/blog/does-coffee-affect-blood-sugar/Black coffee has zero glucose, but caffeine temporarily increases insulin resistance by 15–25%, making your next meal spike higher. Decaf does not have this effect.Tue, 27 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-corn-spike-blood-sugar/https://getpre.app/blog/does-corn-spike-blood-sugar/Corn has a moderate glycemic index (GI 52–60) when eaten on the cob, but corn-based products like cornflakes (GI 81) and corn tortillas (GI 70) spike much more.Mon, 26 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-dark-chocolate-spike-blood-sugar/https://getpre.app/blog/does-dark-chocolate-spike-blood-sugar/Dark chocolate (70%+ cacao) has a low glycemic index (GI 23) and minimal blood sugar impact. A 1-oz serving contains only 7g of sugar. Milk chocolate (GI 42) spikes significantly more.Sun, 25 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-dried-fruit-spike-blood-sugar/https://getpre.app/blog/does-dried-fruit-spike-blood-sugar/Dried fruit has a moderate-to-high glycemic index and 3-5x the sugar density of fresh fruit. Dates (GI 42-55), raisins (GI 64), and dried cranberries (GI 62) are concentrated sugar sources.Sat, 24 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-fasting-lower-blood-sugar/https://getpre.app/blog/does-fasting-lower-blood-sugar/Fasting lowers blood sugar by depleting liver glycogen and forcing the body to use fat for fuel. Intermittent fasting (16:8) can reduce fasting glucose by 10-20 mg/dL.Fri, 23 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-fiber-lower-blood-sugar/https://getpre.app/blog/does-fiber-lower-blood-sugar/Soluble fiber reduces blood sugar spikes by 20-30% by forming a gel that slows glucose absorption. You need 25-30g daily, but most Americans get only 15g.Thu, 22 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-fruit-spike-blood-sugar/https://getpre.app/blog/does-fruit-spike-blood-sugar/Most whole fruits cause a low-to-moderate blood sugar spike. Berries (GI 25–40) spike the least. Tropical fruits like pineapple (GI 66) and watermelon (GI 76) spike the most.Wed, 21 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-granola-spike-blood-sugar/https://getpre.app/blog/does-granola-spike-blood-sugar/Granola has a moderate glycemic index (GI 55–70) but is calorie-dense with 30–45g of carbs per half cup. Many brands contain 10–15g of added sugar per serving, hidden behind health marketing.Tue, 20 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-greek-yogurt-spike-blood-sugar/https://getpre.app/blog/does-greek-yogurt-spike-blood-sugar/Plain Greek yogurt has a low glycemic index (GI 11–22) and contains only 4–6g of sugar per serving. Its high protein and low carb content makes it one of the best dairy choices for blood sugar.Mon, 19 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-green-tea-lower-blood-sugar/https://getpre.app/blog/does-green-tea-lower-blood-sugar/Green tea may modestly reduce fasting blood sugar by 5-10 mg/dL. The catechin EGCG inhibits starch digestion and may improve insulin sensitivity, but the effect is small.Sun, 18 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-honey-spike-blood-sugar/https://getpre.app/blog/does-honey-spike-blood-sugar/Honey has a glycemic index of 45–64 depending on type. Raw honey spikes less than processed, but still delivers 17g of sugar per tablespoon.Sat, 17 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-hummus-spike-blood-sugar/https://getpre.app/blog/does-hummus-spike-blood-sugar/Hummus has a low glycemic index (GI 6–28) due to its chickpea base, tahini fat, and olive oil. A typical serving of 2 tablespoons contains only 3g of net carbs.Fri, 16 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-ice-cream-spike-blood-sugar/https://getpre.app/blog/does-ice-cream-spike-blood-sugar/Ice cream has a surprisingly moderate glycemic index (GI 36–62) because its high fat content slows digestion. But it delivers 20–30g of sugar per serving in a delayed, prolonged spike.Thu, 15 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-juice-spike-blood-sugar/https://getpre.app/blog/does-juice-spike-blood-sugar/Fruit juice spikes blood sugar as much as soda. Orange juice (GI 50) delivers 26g of sugar per cup with no fiber to slow absorption. Whole fruit is dramatically better.Wed, 14 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-mango-spike-blood-sugar/https://getpre.app/blog/does-mango-spike-blood-sugar/Mango has a moderate glycemic index (GI 51–60) and contains 22g of sugar per cup. It spikes more than berries but less than pineapple or watermelon.Tue, 13 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-maple-syrup-spike-blood-sugar/https://getpre.app/blog/does-maple-syrup-spike-blood-sugar/Maple syrup has a glycemic index of 54 — lower than table sugar (GI 65) and honey (GI 58). But it still delivers 13g of sugar per tablespoon.Mon, 12 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-meal-timing-affect-blood-sugar/https://getpre.app/blog/does-meal-timing-affect-blood-sugar/Meal timing significantly affects blood sugar. The same meal eaten at 8pm spikes 17-44% more than at 8am. Eating carbs last, not first, reduces spikes by 30-40%.Sun, 11 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-milk-spike-blood-sugar/https://getpre.app/blog/does-milk-spike-blood-sugar/Milk has a low glycemic index (GI 31–39) and causes a small blood sugar spike. But milk triggers a disproportionately large insulin response — 3–6x what its glucose impact would predict.Sat, 10 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-oatmeal-spike-blood-sugar/https://getpre.app/blog/does-oatmeal-spike-blood-sugar/Oatmeal can spike blood sugar depending on the type — instant oats (GI 79) spike fast, while steel-cut oats (GI 42) produce a much slower, smaller response.Fri, 09 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-olive-oil-affect-blood-sugar/https://getpre.app/blog/does-olive-oil-affect-blood-sugar/Olive oil has a glycemic index of 0 and does not raise blood sugar. Adding olive oil to carb-rich meals slows gastric emptying and reduces glucose spikes by 20–30%.Thu, 08 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-orange-juice-spike-blood-sugar/https://getpre.app/blog/does-orange-juice-spike-blood-sugar/Orange juice has a moderate glycemic index (GI 46–57) but delivers 21–26g of sugar per cup with almost no fiber. It spikes significantly more than eating a whole orange.Wed, 07 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-pasta-spike-blood-sugar/https://getpre.app/blog/does-pasta-spike-blood-sugar/Pasta spikes blood sugar less than most starchy foods — regular pasta has a GI of 42–58, lower than bread or rice, because its dense gluten matrix slows starch digestion.Tue, 06 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-peanut-butter-spike-blood-sugar/https://getpre.app/blog/does-peanut-butter-spike-blood-sugar/Peanut butter has a very low glycemic index (GI 14) and barely affects blood sugar. Its high fat and protein content actually helps reduce spikes from other foods when eaten together.Mon, 05 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-pineapple-spike-blood-sugar/https://getpre.app/blog/does-pineapple-spike-blood-sugar/Pineapple has a moderate-to-high glycemic index (GI 59–66) and contains 16g of sugar per cup. It spikes more than most fruits due to its high sucrose content and low fiber.Sun, 04 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-pizza-spike-blood-sugar/https://getpre.app/blog/does-pizza-spike-blood-sugar/Pizza causes a delayed, prolonged blood sugar spike that can last 4–6 hours. The combination of refined dough, cheese fat, and high-GI toppings creates a uniquely challenging glucose pattern.Sat, 03 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-popcorn-spike-blood-sugar/https://getpre.app/blog/does-popcorn-spike-blood-sugar/Popcorn has a moderate glycemic index (GI 55–72) but an extremely low glycemic load because it is mostly air. Three cups of plain popcorn contain only 15g of net carbs.Fri, 02 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-protein-affect-blood-sugar/https://getpre.app/blog/does-protein-affect-blood-sugar/Protein does not spike blood sugar directly but stimulates insulin and GLP-1 release. Eating protein before carbs can reduce the spike by 30-40%. Protein is a powerful glucose-management tool.Thu, 01 Jan 2026 00:00:00 GMThttps://getpre.app/blog/does-quinoa-spike-blood-sugar/https://getpre.app/blog/does-quinoa-spike-blood-sugar/Quinoa has a low-to-moderate glycemic index (GI 53) and spikes blood sugar less than rice or bread. Its protein, fiber, and intact seed structure slow starch digestion significantly.Wed, 31 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-rice-spike-blood-sugar/https://getpre.app/blog/does-rice-spike-blood-sugar/Yes — white rice spikes blood sugar rapidly due to its stripped structure, while brown rice spikes less because its bran layer slows digestion.Tue, 30 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-sleep-affect-blood-sugar/https://getpre.app/blog/does-sleep-affect-blood-sugar/Poor sleep increases insulin resistance by 25-40% after just one night. Sleeping less than 6 hours raises fasting glucose, increases appetite for carbs, and raises diabetes risk by 28%.Mon, 29 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-soda-spike-blood-sugar/https://getpre.app/blog/does-soda-spike-blood-sugar/Regular soda causes one of the fastest and largest blood sugar spikes of any food or drink. A 12-oz can delivers 39g of sugar with a GI of 63, absorbed in minutes.Sun, 28 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-sourdough-bread-spike-blood-sugar/https://getpre.app/blog/does-sourdough-bread-spike-blood-sugar/Sourdough bread (GI 54) spikes blood sugar 25-30% less than regular white bread (GI 75). The lactic acid from fermentation genuinely slows starch digestion.Sat, 27 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-stevia-affect-blood-sugar/https://getpre.app/blog/does-stevia-affect-blood-sugar/Stevia has a glycemic index of 0 and contains zero calories. It does not spike blood sugar. Some research suggests stevia may modestly improve insulin sensitivity.Fri, 26 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-stress-raise-blood-sugar/https://getpre.app/blog/does-stress-raise-blood-sugar/Stress directly raises blood sugar by 20-40 mg/dL through cortisol and adrenaline release, even without eating. Chronic stress impairs insulin sensitivity and increases diabetes risk.Thu, 25 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-sugar-free-food-spike-blood-sugar/https://getpre.app/blog/does-sugar-free-food-spike-blood-sugar/Sugar-free foods can still spike blood sugar. Sugar alcohols, maltodextrin, and refined starches in 'sugar-free' products often have significant glycemic impact.Wed, 24 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-sugar-spike-blood-sugar/https://getpre.app/blog/does-sugar-spike-blood-sugar/Not all sugar spikes blood sugar equally. Glucose (GI 100) spikes fastest. Sucrose (GI 65) is moderate. Fructose (GI 19) barely spikes glucose but overloads the liver instead.Tue, 23 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-tofu-spike-blood-sugar/https://getpre.app/blog/does-tofu-spike-blood-sugar/Tofu has virtually no effect on blood sugar. It contains only 1–3g of carbs per serving, has a glycemic index near 0, and its protein and fat content actually helps reduce spikes from other foods.Mon, 22 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-vinegar-lower-blood-sugar/https://getpre.app/blog/does-vinegar-lower-blood-sugar/Vinegar (1-2 tablespoons before a meal) can reduce blood sugar spikes by 20-35%. The acetic acid slows starch digestion and gastric emptying. The effect is real but modest.Sun, 21 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-walking-after-eating-lower-blood-sugar/https://getpre.app/blog/does-walking-after-eating-lower-blood-sugar/A 15-minute walk after meals reduces blood sugar spikes by 20-30%. Walking is more effective than standing, and timing matters — walking within 30 minutes of eating has the greatest effect.Sat, 20 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-watermelon-spike-blood-sugar/https://getpre.app/blog/does-watermelon-spike-blood-sugar/Watermelon has a high glycemic index (GI 76) but a low glycemic load (GL 5) because it is 92% water. A typical serving causes only a small blood sugar spike despite the high GI number.Fri, 19 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-white-bread-spike-blood-sugar/https://getpre.app/blog/does-white-bread-spike-blood-sugar/White bread has a high glycemic index (GI 71–77) — it spikes blood sugar as fast as pure glucose. Sourdough, whole grain, and rye bread are significantly better alternatives.Thu, 18 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-white-rice-spike-blood-sugar/https://getpre.app/blog/does-white-rice-spike-blood-sugar/White rice has a high glycemic index (GI 72–83) and is one of the most significant blood sugar spiking foods worldwide. A cup delivers 45g of rapidly-digested starch.Wed, 17 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-whole-wheat-spike-blood-sugar/https://getpre.app/blog/does-whole-wheat-spike-blood-sugar/Whole wheat bread (GI 74) spikes blood sugar almost as much as white bread (GI 75). The difference is only 1-3 GI points. Truly intact whole grains perform much better.Tue, 16 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-wine-spike-blood-sugar/https://getpre.app/blog/does-wine-spike-blood-sugar/Dry wine (red and white) has a glycemic index near 0 and contains only 1–4g of residual sugar per glass. It is the lowest-glycemic alcoholic drink alongside spirits.Mon, 15 Dec 2025 00:00:00 GMThttps://getpre.app/blog/does-yogurt-spike-blood-sugar/https://getpre.app/blog/does-yogurt-spike-blood-sugar/Plain yogurt has a low glycemic index (GI 14–36) and causes a small blood sugar spike. But flavored yogurt can contain 20–30g of added sugar, spiking as much as a candy bar.Sun, 14 Dec 2025 00:00:00 GMThttps://getpre.app/blog/liquid-sugar-worst-glucose-spike/https://getpre.app/blog/liquid-sugar-worst-glucose-spike/Liquid sugar causes the worst glucose spikes because it bypasses chewing, stomach breakdown, and fiber barriers — delivering sugar to the bloodstream in under 5 minutes.Sat, 13 Dec 2025 00:00:00 GMThttps://getpre.app/blog/protein-before-carbs-glucose/https://getpre.app/blog/protein-before-carbs-glucose/Eating protein before carbohydrates reduces blood sugar spikes by 30 to 40 percent by triggering GLP-1 and CCK hormones that slow gastric emptying.Fri, 12 Dec 2025 00:00:00 GMThttps://getpre.app/blog/what-is-glycemic-load-vs-glycemic-index/https://getpre.app/blog/what-is-glycemic-load-vs-glycemic-index/Glycemic index measures how fast a food spikes blood sugar per gram of carb. Glycemic load accounts for how much carb you actually eat. Watermelon (GI 76, GL 4) shows why both matter.Thu, 11 Dec 2025 00:00:00 GMThttps://getpre.app/blog/what-is-resistant-starch/https://getpre.app/blog/what-is-resistant-starch/Resistant starch passes through the small intestine undigested, feeding gut bacteria instead of spiking blood sugar. Cooling cooked rice, potatoes, and pasta creates resistant starch.Wed, 10 Dec 2025 00:00:00 GMT