Coffee – Who can drink and who should avoid?

Coffee – Who can drink it and who should avoid it?

  Coffee is one of those things – you either love it or hate it.

You know if you like the taste or not (or if it’s just a reason to drink sugar and cream).

You know how it makes you feel (i.e. your gut, your mind, etc.).

Not to mention the crazy headlines that say coffee is great, and the next day you should avoid it!

There is actual science behind why different people react differently to it. It’s a matter of your genetics and how much coffee you’re used to drinking.

NOTE: Coffee does not equal caffeine. Coffee contains between 50-400 mg of caffeine/cup, averaging around 100 mg/cup.

Coffee is one of the most popular ways to consume this stimulant.  But… a cup of coffee contains a lot of things over and above the caffeine. Not just water, but antioxidants, and hundreds of other compounds.

These are the reasons drinking a cup of coffee is not the same as taking a caffeine pill.  And decaffeinated coffee has a lot less caffeine; but, it still contains some.

Let’s look at caffeine metabolism, its effects on the mind and body, and whether coffee drinkers have higher or lower risks of disease. Then I’ll give you some things to consider when deciding if coffee is for you or not.

Caffeine metabolism

Not all people metabolize caffeine at the same speed. How fast you metabolize caffeine will impact how you’re affected by the caffeine. In fact, caffeine metabolism can be up to 40x faster in some people than others.

About half of us are “slow” metabolizers of caffeine. We can get jitters, heart palpitations, and feel “wired” for up to 9 hours after having a coffee. The other half is “fast” metabolizers of caffeine. They get energy and increased alertness and are back to normal a few hours later.

This is part of the reason those headlines contradict each other so much – because we’re all different!

The effects of coffee (and caffeine) on the mind and body

NOTE: Most studies look at caffeinated coffee, not decaf.

The effects of coffee (and caffeine) on the mind and body also differ between people; this is partly from the metabolism I mentioned. But it also has to do with your body’s amazing ability to adapt (read: become more tolerant) to long-term caffeine use. Many people who start drinking coffee feel the effects a lot more than people who have coffee every day.

Here’s a list of these effects (that usually decrease with long-term use):

  • Stimulates the brain
  • Boosts metabolism
  • Boosts energy and exercise performance
  • Increases your stress hormone cortisol
  • Dehydrates

So, while some of these effects are good and some aren’t, you need to see how they affect you and decide if it’s worth it or not.

Coffee and health risks

There are a ton of studies on the health effects of coffee, and whether coffee drinkers are more or less likely to get certain conditions.

Here’s a quick summary of what coffee can lead to:

  • Caffeine addiction and withdrawal symptoms (e.g. a headache, fatigue, irritability)
  • Increased sleep disruption
  • Lower risk of Alzheimer’s and Parkinson’s
  • Lower risk of developing type 2 diabetes
  • Lower risk of certain liver diseases
  • Lower risk of death (“all cause mortality”)
  • Mixed reviews on whether it lowers risks of cancer and heart disease

Many of the health benefits exist even for decaf coffee (except the caffeine addiction and sleep issues).

NOTE: What’s super-important to note here is that coffee intake is just one of many, many factors that can affect your risks for these diseases. Please never think regular coffee intake is the one thing that can help you overcome these risks. You are health-conscious and know that eating a nutrient-rich whole foods diet, reducing stress, and getting enough sleep and exercise are all critical things to consider for your disease risk. It’s not just about the coffee.

Should you drink coffee or not?

There are a few things to consider when deciding whether you should drink coffee. No one food or drink will make or break your long-term health.

Caffeinated coffee is not recommended for:

  • People with arrhythmias (e.g. irregular heartbeat)
  • People who often feel anxious
  • People who have trouble sleeping
  • People who are pregnant
  • Children and teens

If none of these apply, then monitor how your body reacts when you have coffee. Does it:

  • Give you the jitters?
  • Increase anxious feelings?
  • Affect your sleep?
  • Give you heart palpitations?
  • Affect your digestion (e.g. heartburn, etc.)?
  • Give you a reason to drink a lot of sugar and cream?

Depending on how your body reacts, decide whether these reactions are worth it to you. If you’re not sure, I recommend eliminating it for a while and see the difference.

Recipe (Latte): Pumpkin Spice Latte

Serves 1

3 tbsp coconut milk
1 ½ tsp pumpkin pie spice (or cinnamon)
¼ tsp vanilla extract
1 tbsp pumpkin puree

½ tsp maple syrup (optional)
1 cup coffee (decaf if preferred)

Instructions

Add all ingredients to blender and blend until creamy.

Serve & enjoy!

Tip: You can use tea instead of milk if you prefer.

References:  

About No Limits

No Limits Fitness provides step-by-step programs to help busy adults get the body they’ve always wanted, without restrictive diets or time-consuming workouts, so they can lead more fulfilling lives. Life is a much better experience in a strong, healthy body!

Recent Posts

How To Lose Weight Without Counting Calories

By Juan Perez • 05 Apr, 2024
One of the first recommendations you’ll hear for someone wanting to lose weight is to begin by counting calories. Although weighing your food and counting calories does work for some people, the reality is that this approach to weight loss has an astonishingly high failure rate. If this strategy is “based in science”, why does it fail more than 95% of the time? The Top 3 Issues With Counting Calories The number of calories in the foods you eat are estimates. This is where the concept of counting calories being “based in science” can be misleading. The FDA allows companies to use 5 different formulas to estimate calories and a standard deviation up to 20% is acceptable. This means that something listed as 150 calories exists on a range between 120 calories and 180 calories. How ripe is your banana? The ripeness affects caloric availability. The second issue is that as individuals we each absorb a different amount of the calories from the food we consume. Thirdly, Americans are notoriously bad at determining healthy portion sizes. Our super-sized culture has heavily influenced our concept of a normal sized portion. The good news is that there is another way to lose weight without counting calories. The Three Pillars of Nutrition Whether or not you’re a card-carrying member of Camp Calorie Counters, the foundation of your nutrition is built upon three pillars: Food Quality, Food Quantity and Food Timing. Food Quality All calories are not created equal. The popular 100 calorie snack bags do not offer the same nutritional value as 100 calories from fruits or vegetables. When the majority of your meals are composed of minimally processed single ingredient whole foods (lean protein, fruits and vegetables), you’re more likely to get the micronutrients your body needs to thrive. Food Quantity As mentioned earlier, Americans aren’t known for our skills at eyeballing healthy portion sizes. Although using a food scale to determine portion sizes can be helpful, it isn’t always practical. This is the reason we recommend learning to use your hand as a guide to determine portion sizes. You can’t take a food scale with you everywhere you go but you’re always allowed to bring your hands!

Six Movement Patterns Your Program Needs

By Chava Cruz • 07 Mar, 2024
There are six fundamental movement patterns that every good program will include. Push, pull, hinge, squat, lunge, and loaded carry. These are all everyday movements that our bodies need in order to function more efficiently. Push Incorporating a variety of push exercises like the bench press, shoulder press, triceps presses and push-ups will help strengthen your upper body muscles. These exercises primarily target our chest, shoulders and triceps. Don’t want the wings under your arm that shake real bad when you wave? Start pushing.  We use push movements with tasks as simple as pushing doors open and pushing grocery carts to more difficult tasks like lifting ourselves up from a seated position. Pull Pull exercises are the counter to push, creating a balance. They primarily target our back, biceps and rear delts. It is crucial to have just as many pulls in your plan to avoid injury and overuse of your upper body muscles. Some popular pull exercises include bent over rows, single arm row, lat pull downs and trx rows. Aside from your muscles getting stronger, these exercises will improve your posture and help you pick things up like kids and animals. No kids or animals? You still have to pick up groceries or laundry, nice try. Hinge Hinging is something we do often without realizing it. It primarily targets our hips, lower back, glutes and hamstrings. Some of the most common hinge exercises are deadlifts, kettlebell swings, and hip thrusts. Performing hinge movements will help improve your stability, flexibility and hip mobility on top of strengthening your lower body. The more mobile and flexible you are, the easier it is to move. Hinge exercises will also stabilize your core muscles which is the root of everything. Daily tasks that mimic the hinge movement are bending over to lift heavy objects and bending to prepare to sit or stand. Squat Similar to pull being the counter to push.. The squat is the counter to hinge. You shouldn’t have one without the other. It’s kind of like having a plate of food without the silverware. You could do it, it’s just going to get messy. Squats primarily target the quads, hamstrings and glutes. Some of the most common types of squats include goblet squat, back squat, front squat, overhead squat and sumo squat. Performing these exercises will strengthen your lower body muscles and improve your core and stability. Daily tasks that involve squats include lifting heavy objects (after you’ve performed a hinge to go and get it), sitting down and standing up. Lunge Everyone's favorite, lunges. Aside from creating rock hard quads, the lunge is essential to a functional body and injury prevention. Reverse lunges, forwards lunges, lateral lunges and split squats are all examples of what you can incorporate into your program. Imagine falling and not being able to get back up. Not everyone wants to rely on life alert. Practicing and staying consistent with lunges will help allow you to avoid a fall in the first place because of the stability they create, but also to be able to actually get yourself up off of the ground when you need to. Loaded Carry Ah, loaded carries. You either hate them or love them but either way you’re going to be stuck doing them at some point. Loaded carries create a strong core which in return helps with your balance and stability. They will also improve your grip strength. Carrying groceries from the store to your car becomes a lot easier the more you practice these. Different types of carries include farmers, suitcase, racked, overhead, and mixed. We carry things every single day and we do it in different ways depending on the object. Include a variety of carries in your program so you’re prepared to carry anything. Conclusion Performing all six of these movement patterns every week will ensure that you are moving better day to day. The better we function and move properly, the better we feel and the healthier we will be. If you would like to meet with one of our experienced personal trainers to discuss incorporating these 6 movement patterns in your training program, click on the button below to schedule a free consultation.

Why Calories Burned Is The Worst Metric To Track

By Juan Perez • 16 Feb, 2024
We can totally relate. Almost everyone who has access to a smart watch or fitness tracker has at some point assessed the quality of a workout by the number of calories burned. You’ve pushed yourself to finish a difficult workout and that number is just staring you in the face. And you’re first thought is…that’s it? Despite my best efforts, on a very regular basis I’ll hear someone comment with a disappointing tone about the number of calories they just burned. Fitness wearables on the whole are positive. These devices provide valuable biofeedback and insights into our activity. People wearing fitness tracking devices tend to focus on increasing their healthy activities. I’m a huge advocate for heart-rate training and my intention with this post isn’t to discourage the use of fitness tracking devices. I do however want to raise public awareness that Calories Burned is the worst metric you could track with your workouts. Now that I’ve made my claim, here are the top 5 reasons why you should stop paying attention to the number of calories burned in your workout. Fitness Trackers Don’t Accurately Measure Energy Expenditure In 2017, Stanford University studied the seven most popular fitness devices. While six out of the seven measured heart rate within 5% accuracy, none of the devices accurately measured energy expenditure (calories burned). The most accurate device was off by 27% and the least accurate was off by 93%. These devices are based on a formula that doesn’t take into account your individual metabolic rate, the muscles you’re working or the weight you’re using. In early 2024, we had someone wear two fitness trackers while working out on equipment that also calculated calories burned. The reported calories burned on the fitness trackers differed by more than 300 and the fitness equipment was significantly lower than both wearables. Burning More Calories Doesn’t Mean Better A well-rounded fitness program will include both strength training and conditioning that incorporates both high and low intensities. Focusing exclusively on maximum calorie burning would be the nutritional equivalent of only eating foods with higher amounts of Vitamin C. There are other vitamins, micronutrients and macronutrients needed for optimal nutrition. Imagine driving your car in such a way that you maximized the RPMs of your engine. You wouldn’t expect the engine to last and you shouldn’t drive your body that way either. Strength Training Matters Too Focusing on calories burned usually leads to focusing on conditioning (commonly referred to as cardio). For reasons mentioned earlier, fitness trackers don’t capture the entire picture when it comes to strength training. Adding lean muscle to your frame with strength training will improve your metabolic rate which allows you to burn more calories on a daily basis. While conditioning workouts tend to burn more calories in a given workout, this comparison doesn’t tell the entire story. Conditioning workouts won’t help you increase your lean muscle tissue or the number of calories you burn when you don’t workout. This is one of the reasons strength training should be included in your fitness routine. Improved Efficiency Results In Less Calories Burned When you regularly perform a given exercise, you tend to improve your efficiency with that exercise. As your movement quality improves, your body requires less energy to perform the same amount of work. If calories burned is the ultimate metric, you’re looking at continually increasing the amount of exercise you do just to burn the same number of calories. Someone who has been exercising for less than one month will burn significantly more calories performing walking lunges (or any other exercise) than the person who has been exercising for 5 years. The goal is to get better so you can improve your efficiency and movement quality. The Constrained Model of Total Energy Expenditure In his book Burn, Herman Pontzer describes his findings from research on the Hadza, a tribe of hunter gatherers. His research has blown the lid off everything the fitness industry THOUGHT it knew about burning calories. It turns out that we burn calories in a very narrow range...regardless of our physical activity. Hunter-gatherer tribes were only burning a few hundred calories per day more than a sedentary desk jockey. When we burn additional calories with our training, the body takes away energy from other areas such as reproduction, digestion, recovery, etc. You can't burn a never-ending amount of calories in a day because it requires both time AND energy to turn your food into the ATP your body can use as fuel. This also explains why simply adding more exercise doesn't equate to weight loss...even when caloric intake is controlled. What To Focus On Instead of Calories Burned As mentioned earlier, we are huge advocates of heart rate training, and we recommend using Morpheus. These devices take several metrics into consideration in determining your daily recovery score which then impacts your heart rate zones for the day. Morpheus also provides you with weekly targets for the 3 heart rate zones. This ensures you are building an aerobic base without compromising your recovery with too much higher intensity work.  Training at the right volume and intensity for you as an individual produces the best results with the Minimum Effective Dose.
Show More
Share by: