10 Best Protein Bars for Diabetics (October 2026)

Most protein bars are candy bars with a protein label. Syrups, sugar alcohols and dessert coatings push the carbohydrate count well past what a person managing blood sugar wants in a snack, and the front-of-pack protein number tells you nothing about that. The bigger mistakes are picking a bar with high protein but 20g or more of carbs, or a "sugar free" bar built on sweeteners that upset digestion. The Best Protein Bars for Diabetics depend on three numbers: sugar, net carbs and fiber, with protein and flavor deciding which bar you will actually finish.

The short answer: the RXBAR Variety Pack suits anyone who wants a short ingredient list and a three-flavor box, the Pure Protein Chocolate Peanut Butter bar suits buyers who want 20g of protein at 190 calories with 3g of sugar, and the IQBAR Sampler Pack suits people who want 1-2g of sugar and 8-9g of fiber in a plant-based bar. The rest of the list covers zero-sugar keto bars, a mini-sized option, a mixed-protein bundle and bars that trade strict numbers for a chewier, candy-bar feel.

TL;DR: top picks at a glance

• Best overall: the RXBAR Variety Pack, 12g of protein per bar in a 10-bar box with three flavors.
• Best for high protein: Pure Protein Chocolate Peanut Butter, 20g of protein with 3g of sugar and 190 calories.
• Best for fiber and low sugar: IQBAR Sampler Pack, 8-9g of fiber with 1-2g of sugar and 3g of net carbs.
• Best for zero sugar: Extend Sugar Free Bars, 0g of sugar, 6g of fiber and 1g of net carbs at 160 calories.

Best Protein Bars for Diabetics Comparison (October 2026)

#	Product	Best for	Protein	Sugar	Bars per Pack
1	RXBAR Variety Pack	Simple ingredients	12g	Not listed	10
2	Pure Protein Chocolate Peanut Butter	High protein	20g	3g	12
3	IQBAR Sampler Pack	High fiber	12g	1-2g	7
4	Extend Sugar Free Bars	Zero sugar	12g	0g	12
5	Pure Protein Variety Pack	Flavor variety	20-21g	3g	18
6	KIND Protein MAX Bundle	Mixed bar types	5-20g	1g total	12
7	Quest Mini Cookies & Cream	Small portions	8g	1g	14
8	Nature Valley Protein Chewy Variety	Chewy granola	10g	Not listed	15
9	NuGo Smarte Carb Peanut Crunch	Zero-sugar protein	18-20g	0g	12
10	FULFIL Chocolate Salted Caramel	Candy-style bar	15g	2g	12

1. RXBAR Variety Pack: Best Simple-Ingredient Protein Bar for Mixed Flavors

• Protein: 12g per bar
• Pack: 10 bars, 18.3 oz box (3 Peanut Butter, 3 Peanut Butter Chocolate, 4 Chocolate Sea Salt)
• Sugar: Not listed
• Allergens: Contains cashews, almond, peanut and egg
• Weight: About 1.14 lb

Pros:

• The 12g of protein per bar covers up to 20% of the daily value, which is enough to make it a real snack rather than a sweet.
• The ingredient approach is built on simple foods, so the label is short and easy to read.
• The three-flavor mix (Peanut Butter, Peanut Butter Chocolate, Chocolate Sea Salt) prevents flavor fatigue across a 10-bar box.
• It is gluten free and Kosher Pareve, which widens the set of buyers it suits.

Cons:

• Sugar and net carb figures are not specified here, so a diabetic buyer has to confirm them on the pack.
• The ingredient list includes tree nuts, peanut and egg, which rules it out for several allergy profiles.
• At 12g of protein it delivers less than Pure Protein Chocolate Peanut Butter at 20g.

Best for: A buyer who wants a short ingredient list and several flavors in one box, and who will check the carbohydrate numbers on the wrapper before making it a routine.

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The RXBAR Variety Pack stands apart on formulation rather than on a headline macro. Where the Pure Protein and Extend bars chase low sugar numbers, RXBAR leans on simple foods and a clean label. That makes it the easiest bar on this list to recommend as a daily staple for someone who dislikes sweeteners and sugar alcohols.

The catch is the missing carbohydrate detail. It is the one top-ranked bar here where sugar and net carbs are not stated, so a person with strict carb targets should read the nutrition panel for each flavor before committing. If you need a guaranteed low figure, the Extend Sugar Free Bars at 0g of sugar or the IQBAR Sampler Pack at 1-2g are the safer picks.

At 1.14 lb for 10 bars, it is also one of the lighter boxes, which suits a desk drawer or a work bag. It is the wrong choice for anyone with a peanut, almond, cashew or egg allergy, where the Nature Valley Protein Chewy Variety is not a safe swap either, because it is built around peanut and almond flavors. The plant-based IQBAR Sampler Pack is the closest fit for dairy-free and egg-free needs.

2. Pure Protein Chocolate Peanut Butter: Best 20g Protein Bar for Low-Sugar Snacking

• Protein: 20g per bar
• Sugar: 3g
• Calories: 190
• Pack: 12 bars, individually wrapped
• Weight: About 1.32 lb

Pros:

• 20g of protein at only 190 calories gives it one of the best protein-to-calorie ratios in the list.
• 3g of sugar keeps it far below conventional candy-style bars.
• It is certified gluten free and individually wrapped, so it travels well in a gym bag or desk drawer.
• The chocolate and peanut butter flavor reads as a treat, which helps when the goal is to replace a sweet snack.

Cons:

• 3g of sugar is low but not zero, so it sits above the Extend Sugar Free Bars and NuGo Smarte Carb Peanut Crunch.
• Net carbs and fiber are not specified here, so they need checking on the pack.
• It is a single flavor in the 12-count box, which can get repetitive.

Best for: A buyer who wants a filling 20g protein snack for afternoons or after workouts without moving into the sugar-free sweetener category.

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The Pure Protein Chocolate Peanut Butter bar is the most straightforward high-protein option here. At 20g per bar it matches the protein of NuGo Smarte Carb Peanut Crunch at roughly the same pack size, while its 190 calories keep the bar from becoming a meal. It also comes in other flavors, including Chocolate Peanut Caramel, Chocolate Deluxe and Chocolate Salted Caramel.

Its main advantage over the zero-sugar bars is texture and flavor. Many buyers find it tastes more like a snack bar than a supplement, which makes it easier to stick with. Its weakness is the lack of fiber information in the data: if fiber matters to your plan, the IQBAR Sampler Pack at 8-9g is clearly the stronger pick.

If you want flavor variety rather than one bar repeated 12 times, skip it and choose the Pure Protein Variety Pack, which uses the same 3g of sugar and 190 calorie profile across three flavors.

3. IQBAR Sampler Pack: Best High-Fiber Plant Protein Bar for Low Sugar

• Protein: 12g plant protein per bar
• Fiber: 8-9g
• Sugar: 1-2g total, no added sugar
• Net carbs: 3g
• Pack: 7 bars, one of each of seven flavors

Pros:

• 8-9g of fiber per bar is the highest fiber figure on the list, which supports a slower, steadier snack.
• 1-2g of total sugar with no added sugar and 3g net carbs makes it one of the lowest-carb options.
• It is vegan, dairy free, gluten free, non-GMO and Kosher, so it fits many dietary restrictions at once.
• The seven-flavor sampler (including Chocolate Sea Salt, Peanut Butter Chip and Lemon Blueberry) lets you pick a favorite before buying a bigger box.

Cons:

• Seven bars is the smallest pack in the list, so it is a trial rather than a month of snacks.
• 12g of plant protein is lower than the 20g bars from Pure Protein and NuGo.
• The added functional ingredients (Lion's Mane, MCTs) add complexity some buyers do not want in a snack.

Best for: A buyer who wants a plant-based, high-fiber, low-sugar bar and prefers to test several flavors before choosing one.

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The IQBAR Sampler Pack is the best answer to the question of what a lower-carb bar can do with fiber. At 8-9g per bar, it carries more fiber than the Extend Sugar Free Bars at 6g and far more than anything else in the list that states a figure. A natural flavor variant also exists for buyers who prefer a plainer profile.

Its protein is the compromise. At 12g it matches RXBAR and Extend but sits well below the 20g of the Pure Protein Chocolate Peanut Butter bar. If your goal is maximum protein per bar rather than fiber and a clean label, that Pure Protein bar is the better fit.

The seven-bar format also matters. It is excellent for finding a flavor, but poor value as a stockpile. Once you know which flavor works, a larger box such as the Extend Sugar Free Bars 12-count or the KIND Protein MAX Bundle will cover more days.

4. Extend Sugar Free Bars: Best Zero-Sugar Keto Bar for Steady Energy

• Protein: 12g per bar
• Sugar: 0g
• Fiber: 6g, with 1g net carb
• Calories: 160
• Pack: 12 bars, about 1.39 lb

Pros:

• 0g of sugar with 1g of net carb is about as low as a bar gets on carbohydrates.
• 6g of fiber at 160 calories makes it filling for its size.
• It is made without erythritol and without artificial flavors or sweeteners, which matters for buyers sensitive to sugar alcohols.
• It is positioned specifically for blood sugar support and appetite control, and fits keto and intermittent fasting routines.

Cons:

• 12g of protein is modest next to the 20g bars in this list.
• It is a single-flavor-profile product, so a 12-count box offers little variety.
• The texture of low-sugar, high-fiber bars can be denser than candy-style options like FULFIL Chocolate Salted Caramel.

Best for: A buyer with strict carbohydrate goals who wants zero sugar and no sugar alcohols in a daily snack bar.

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The Extend Sugar Free Bars are the most purpose-built diabetic snack in the group. Its marketing and formulation both focus on blood sugar support, and the numbers back that up: 0g of sugar, 1g net carb, 6g of fiber. Where NuGo Smarte Carb Peanut Crunch also reaches 0g of sugar, Extend uses a different approach by avoiding erythritol and artificial sweeteners.

Its limit is protein. At 12g it will keep you going between meals but it is not a recovery bar. If you want 20g of protein with zero sugar, move up to NuGo. If you want a bar that tastes closer to a dessert, the Quest Mini Cookies & Cream or FULFIL Chocolate Salted Caramel will feel more like a treat, with 1-2g of sugar.

5. Pure Protein Variety Pack: Best 18-Count Protein Bar Box for Flavor Rotation

• Protein: 20-21g per bar, depending on flavor
• Sugar: 3g
• Calories: 190
• Pack: 18 bars (6 Chocolate Peanut Butter, 6 Chocolate Deluxe, 6 Chewy Chocolate Chip)
• Weight: About 1.98 lb

Pros:

• 20-21g of protein per bar matches the single-flavor Pure Protein box.
• 18 bars is the second-largest count in the list, which suits households or multi-week supply.
• Three chocolate-forward flavors reduce repetition compared with a single-flavor box.
• The gluten-free formulation and 3g of sugar keep it in the low-sugar bracket.

Cons:

• All three flavors are chocolate-based, so variety is limited to texture and mix-ins.
• 3g of sugar is higher than the zero-sugar Extend Sugar Free Bars and NuGo Smarte Carb Peanut Crunch.
• Fiber and net carbs are not specified here.

Best for: A buyer who already likes the Pure Protein profile and wants a larger box with some flavor rotation.

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This is the bulk version of Pure Protein Chocolate Peanut Butter. You get the same 190 calories and 3g of sugar, with 6 more bars and two extra flavors. At about 1.98 lb it is also the heaviest box, so it suits a pantry more than a pocket.

It is the wrong choice if you are chasing the lowest sugar number or the highest fiber. For that, the IQBAR Sampler Pack or Extend Sugar Free Bars are stronger. It is the right choice if a 12-bar single-flavor box would bore you.

6. KIND Protein MAX Bundle: Best Mixed Zero-Added-Sugar Bundle for Varied Snacking

• Protein: 5g (Zero Added Sugar bars) to 20g (Protein MAX bars)
• Sugar: 1g total, 0g added
• Net carbs: 4g on the Zero Added Sugar bars
• Pack: 12 bars across 4 flavors, 3 of each
• Weight: About 1.48 lb

Pros:

• It combines light 5g protein snack bars and 20g Protein MAX bars, so one box covers a small snack and a bigger one.
• 0g added sugar and 1g total sugar are stated on the bars.
• There are no artificial sweeteners or sugar alcohols, and the bars are Non-GMO Project Verified.
• Four flavors, including Dark Chocolate Nuts & Sea Salt and Crispy Chocolate Peanut Butter, keep it varied.

Cons:

• The 5g protein bars are low for a protein-focused snack.
• It is not a low-calorie food, and calories and fat vary by bar.
• The bundle mixes two products, so macros differ bar to bar and need checking.

Best for: A buyer who wants both a light nut-based bar and a high-protein bar in the same box.

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The KIND Protein MAX Bundle is the only mixed-format option in the list. Its Zero Added Sugar bars look like traditional nut bars at 4g net carbs and 5g protein, while the Protein MAX bars reach 20g, matching Pure Protein Chocolate Peanut Butter.

Because macros differ across the box, it is a poor fit for someone who wants identical numbers every time. In that case, a single-profile product like Extend Sugar Free Bars is easier to track.

7. Quest Mini Cookies & Cream: Best Small-Portion Protein Bar for Low-Carb Treats

• Protein: 8g per bar
• Sugar: 1g or less
• Net carbs: 2g
• Pack: 14 mini bars
• Weight: About 0.71 lb

Pros:

• 2g of net carbs and 1g or less of sugar keep carbohydrates very low.
• The mini size makes portion control simple and suits small appetites.
• The cookies and cream flavor with cookie pieces and white chocolatey chunks tastes like a dessert.
• At 0.71 lb for 14 bars, it is the lightest pack here to carry.

Cons:

• 8g of protein is the lowest of any dedicated protein bar on the list.
• It is a single flavor, so it can become repetitive across 14 bars.
• Fiber is not specified here.

Best for: A buyer who wants a small, low-carb sweet snack rather than a full protein hit.

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The Quest Mini Cookies & Cream is a treat-sized bar. Its carbs are as low as the NuGo Smarte Carb Peanut Crunch, but with a fraction of the protein. That makes it a good choice for a mid-afternoon craving, and a poor choice as a meal bridge.

If you need real satiety, step up to the 20g bars from Pure Protein or NuGo. The mini format wins only when portion size is the priority.

8. Nature Valley Protein Chewy Variety: Best Chewy Granola Protein Bar for Kids and Adults

• Protein: 10g per bar
• Sugar: Not listed
• Pack: 15 bars (5 each of Peanut Butter Dark Chocolate, Salted Caramel Nut, Peanut Almond Dark Chocolate)
• Extras: Gluten free, no artificial flavors or colors, no high fructose corn syrup
• Weight: About 1.33 lb

Pros:

• 10g of protein per bar is a solid midpoint between the mini and 20g bars.
• Fifteen individually wrapped bars suit lunch boxes, pantries and travel.
• No high fructose corn syrup and no artificial flavors or colors.
• The chewy granola texture is familiar and easy to like.

Cons:

• Sugar and net carb figures are not specified here, and chewy granola bars typically carry more sugar than the dedicated low-sugar bars in this list.
• The flavors rely on peanut and almond, which excludes nut-allergic buyers.
• It is the least targeted of the ten for strict carbohydrate control.

Best for: A buyer who wants a familiar chewy granola bar with more protein than usual and will verify carbs on the label.

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The Nature Valley Protein Chewy Variety is the easiest bar to hand to a family member who dislikes "diet" bars. It is also the one that most needs label-checking for sugar, since the data does not state it.

For tighter control, choose the Quest Mini Cookies & Cream at 1g of sugar or the Extend Sugar Free Bars at 0g. This pack is best treated as a convenience snack, not a first choice for a carbohydrate-managed plan.

9. NuGo Smarte Carb Peanut Crunch: Best Zero-Sugar 20g Protein Bar for Low Carb Plans

• Protein: 18-20g per bar
• Sugar: 0g
• Net carbs: 1-2g
• Fiber: 5g
• Pack: 12 bars, about 1.32 lb

Pros:

• It is the only bar here that combines 0g of sugar with up to 20g of protein.
• 1-2g of net carbs is among the lowest on the list.
• 5g of fiber adds satiety without much bulk.
• It avoids artificial sweeteners and a chalky protein taste.

Cons:

• The peanut crunch flavor is the only option in this box.
• Fiber of 5g is below the IQBAR Sampler Pack and the Extend Sugar Free Bars.
• Calorie count is not specified here.

Best for: A buyer who wants maximum protein and zero sugar in a single bar for low-carb eating.

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On paper, NuGo Smarte Carb Peanut Crunch has the strongest macro profile in the whole list: 0g of sugar, 1-2g net carbs and 18-20g of protein. It sits below the top three in ranking because it is a single flavor and offers less fiber and less clarity than the leaders.

It is the right pick if you want to pair a protein-heavy snack with strict carb limits. It is the wrong pick if you need flavor variety, where the KIND Protein MAX Bundle or IQBAR Sampler Pack fit better. For a low-carb breakfast at home that is not a bar, a chaffle maker is a separate way to cut carbs, but it requires cooking.

10. FULFIL Chocolate Salted Caramel: Best Candy-Style Protein Bar for Sweet Cravings

• Protein: 15g per bar
• Sugar: About 2g
• Net carbs: 2-3g
• Pack: 12 bars, 40g each
• Weight: About 1.06 lb

Pros:

• 15g of protein sits between the 12g bars and the 20g bars.
• Low sugar and low net carbs for a bar with a soft nougat center and chocolate coating.
• It is gluten free and designed to taste like candy.
• At 40g per bar, it is compact for travel.

Cons:

• The nutrition figures vary slightly between the product title and description, so check the wrapper.
• It ships with cold packs in summer, which suggests the chocolate coating melts easily.
• It is a single flavor in a 12-count box.

Best for: A buyer who craves chocolate and caramel and wants a lower-sugar replacement.

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FULFIL Chocolate Salted Caramel is the dessert replacement on this list. It delivers a chocolate-coated, crisp-and-nougat experience with only about 2g of sugar, which is why it earns a place despite its position.

It ranks last because the stated figures are slightly inconsistent and because the sweeter, softer formula is harder to treat as an everyday staple. For stricter numbers choose NuGo Smarte Carb Peanut Crunch. For a similar treat with clearer carbs, try the Quest Mini Cookies & Cream.

Buyer's Guide: How to Choose the Right Protein Bar for Diabetics

The core trade-off is between taste and carbohydrate control. The bars that taste most like candy usually carry more sugar or rely on sweeteners, while the leanest bars can be dense and less satisfying. This guide is general information, not medical advice, and anyone managing diabetes should confirm choices with their care team.

Before choosing, check these project details:

• Sugar and net carbs: Look for 3g of sugar or less and low net carbs, as with the Extend, NuGo and IQBAR bars.
• Protein per bar: 20g bars like Pure Protein and NuGo are more filling than 8-12g bars.
• Fiber: More fiber slows digestion, with IQBAR at 8-9g leading the list.
• Sweeteners: Some bars avoid sugar alcohols like erythritol, as Extend does.
• Allergens and diet: Nuts, egg, dairy and gluten vary across the ten products.

Sugar and Net Carb Content

Sugar is the first number to check, but net carbs tell the fuller story. The Extend Sugar Free Bars and NuGo Smarte Carb Peanut Crunch reach 0g of sugar, the Quest Mini Cookies & Cream and KIND Protein MAX Bundle sit at about 1g, and the Pure Protein bars sit at 3g. The RXBAR Variety Pack and Nature Valley Protein Chewy Variety do not state sugar in the data, so read their labels.

Bars are a snack, not a meal plan. If breakfast is where you struggle with carbs, a chaffle maker offers a home-cooked low-carb alternative to a packaged bar. Keep the bar for the moments when cooking is not an option.

Protein and Fiber Per Bar

Protein affects how long a bar keeps you full. The Pure Protein Chocolate Peanut Butter and NuGo Smarte Carb Peanut Crunch deliver around 20g, while Quest Mini Cookies & Cream gives only 8g. Fiber works alongside protein: the IQBAR Sampler Pack leads at 8-9g and Extend Sugar Free Bars reach 6g.

Readers comparing menopause supplements for weight loss with food-first options should note that a bar's fullness comes from protein and fiber, not from added ingredients. A bar helps you avoid a sugary snack, but it does not replace a balanced diet.

Ingredients and Sweeteners

Some low-sugar bars rely on sugar alcohols or artificial sweeteners that cause digestive discomfort. Extend Sugar Free Bars avoid erythritol and artificial sweeteners, the KIND Protein MAX Bundle avoids both sugar alcohols and artificial sweeteners, and NuGo Smarte Carb Peanut Crunch avoids artificial sweeteners.

The RXBAR Variety Pack takes a simple-foods approach, but contains tree nuts, peanut and egg. The IQBAR Sampler Pack is vegan and dairy free, which makes it the broadest fit for allergy-conscious buyers.

Pack Size and Variety

A sampler like the IQBAR Sampler Pack with seven bars is ideal for testing flavors. Larger boxes such as the Pure Protein Variety Pack with 18 bars or the Nature Valley Protein Chewy Variety with 15 suit regular use.

Carrying a bar in a bag helps on long days on your feet, and people managing swelling often pair that routine with sandals for swollen feet, a separate decision worth making on its own terms. For travel, the lightest options are the Quest Mini Cookies & Cream at about 0.71 lb for 14 bars and the FULFIL Chocolate Salted Caramel at about 1.06 lb.

Frequently Asked Questions About Protein Bars for Diabetics

What is the best protein bar for diabetics with the lowest sugar?

The Extend Sugar Free Bars and NuGo Smarte Carb Peanut Crunch both reach 0g of sugar. Extend adds 6g of fiber and 1g of net carb, while NuGo adds up to 20g of protein. Choose Extend for the lowest carbs and NuGo for the most protein.

How much protein should a bar have for blood sugar control?

There is no single number, but 12g to 20g is common for a filling snack. The Pure Protein Chocolate Peanut Butter bar offers 20g, while the IQBAR Sampler Pack offers 12g with far more fiber. Higher protein and fiber together tend to keep a snack more satisfying.

Are sugar free protein bars safe for diabetics?

Sugar free does not automatically mean low carb, so check net carbs as well. Bars like Extend Sugar Free Bars list 1g of net carb, while some products use sugar alcohols that affect digestion. A diabetic buyer should confirm choices with a doctor or dietitian.

Which protein bar has the most fiber?

The IQBAR Sampler Pack has the most fiber at 8-9g per bar. The Extend Sugar Free Bars follow with 6g, and NuGo Smarte Carb Peanut Crunch has 5g. Fiber figures for the other bars are not specified here.

Can I eat a protein bar as a meal replacement?

Most of these bars are snacks, not meals. Even a 20g bar like Pure Protein Chocolate Peanut Butter at 190 calories is light. Use them to bridge a gap, not to replace a balanced meal.

Which bar is best for people with nut allergies?

None of the ten is built for nut-free diets. The RXBAR Variety Pack contains cashews, almond and peanut, the Nature Valley Protein Chewy Variety uses peanut and almond, and the Pure Protein and NuGo bars use peanut flavors. Anyone with a nut allergy should read each wrapper carefully.

Final Verdict: Which Protein Bar for Diabetics Should You Buy?

Best Protein Bars for Diabetics for most buyers start with RXBAR Variety Pack: 12g of protein per bar, a simple-food approach, and three flavors in a 10-bar box. Its main weakness is that sugar and net carbs are not specified in the product data, so read the label before making it a routine.

For other needs, the Pure Protein Chocolate Peanut Butter bar is the pick for 20g of protein with 3g of sugar, and the Pure Protein Variety Pack is the same profile across 18 bars and three flavors. The IQBAR Sampler Pack wins on fiber at 8-9g with 1-2g of sugar, and the Extend Sugar Free Bars win on strict carb control with 0g of sugar and 1g of net carb.

The specialist picks cover narrower cases. NuGo Smarte Carb Peanut Crunch pairs 0g of sugar with up to 20g of protein, the Quest Mini Cookies & Cream is the small-portion treat, the KIND Protein MAX Bundle mixes light and high-protein bars, and FULFIL Chocolate Salted Caramel and Nature Valley Protein Chewy Variety suit sweet cravings and family snacking. If you are still undecided, start with the IQBAR sampler to find a flavor, then buy a larger box of the bar whose numbers match your plan.