Victoria BC Dietitian (Nutritionist) Kristen Yarker, MSc, RD Shares Her Favourite Recipe for Cauliflower: Roasted Cauliflower with Cumin and Ginger. Easy, Healthy, Delicious.Read More
I bet that you already have one of these in your kitchen. It’s perfect for making quick and easy slaws and full meal salads/ buddha bowls.
I’m often asked my opinion about what vegetable is the healthiest. I also hear the “best-Mommy” contest that happens on the playground where each parent tries to one-up each other bragging about what weird & healthy veggie their child loves. It goes something like this:
“My Johnny loves carrots.”
“MY Suzie loves broccoli.”
“WELL, MY Nicolas loves kale.”
“Guess what. MY Olivia loves Brussels sprouts. Eats them like candy. Can’t get enough of them.”
You get the picture.
I understand why people ask me about veggies. And why parents feel pressured. The amazing powers of specific vegetables often are the subjects of headlines. It makes a great sound-bite. It’s a great way to sell newspapers & magazines.
But as is often the case, that which makes a great sound-bite isn’t always what’s true. Because it’s been pulled out of context, the sound-bite ends up being only partly-true.
Science’s understanding of exactly what it is in veggies that’s so good for us is crude. We’re constantly learning of new healthy nutrients. For example, when I was studying human nutrition as an undergraduate in the late 1990’s, I was taught that white veggies didn’t have any healthful substances. They may provide flavor and crunch, but they were nutritional zeros. However, we now know that onions, garlic, and their other cousins such as leeks, have healthful nutrients like antioxidants.
While science is constantly discovering new nutrients, what’s found again and again (and again) is that the people who eat the most veggies are the healthiest. Period.
I also like to balance current science with the tried-and-true. And, when I look at traditional diets around the world, I see that human beings have survived and thrived eating all sorts of plant foods.
Let me be clear. I’m not denying that dark green veggies (like kale) and brightly-coloured veggies (like carrots and purple cabbage) are really healthy. They’re fantastic choices! What I’m saying is to not consider veggies such as cucumber and celery as empty junk. While they’re today’s zeros, who knows if they will be tomorrow’s super-stars. And, they’re healthier than most processed foods which kids typically eat if they’re not eating veggies.
So don’t stress if your picky eater doesn’t like today’s super-star veggies.
When it comes to veggies, it’s about quantity. And, variety.
Instead of relying on the magic of any one vegetable (and trying to force your picky eater to eat it), enjoy a wide variety of veggies. Introduce your little one to many different veggies (and repeat those introductions, and repeat, and repeat…). Be a veggie variety role model yourself. Encourage your little one to enjoy the wide, wide world of veggies in all colours of the rainbow. Together explore all the different tastes and textures.
And celebrate when your little one eats ANY veggies - whether it’s kale chips or that French Breakfast radish that the Farmer convinced him to try at Saturday’s Farmers Market, or…
So, what’s my answer when I’m asked what’s the healthiest vegetable? Answer: The one that you’ll eat (because it doesn’t matter how healthy any veggie is – if you won’t eat it – it can’t do you any good).
Photo credit: Keenan Loo on Unsplash
Love the flavour of pumpkin spice and pumpkin pie? But looking for a healthy way to enjoy it? Look no further. This mousse is seriously delicious.
I admit that I'm lazy so I make it without the crust. And it's still fantastic! I find that the pumpkin mousse tastes best when refrigerated overnight.
This recipe is a great way to include some more veggies (for picky kids and us adults who can use to eat more veggies too). Pumpkin rocks the vitamin A and has good fibre too.
Baby Food Version: Make this recipe without the crust and omit the maple syrup.
Healthy Pumpkin Mousse Ingredients:
1 cup of full fat coconut milk (put in fridge overnight)
1 can of pumpkin puree
1/4 cup of black chia seeds
1/4 cup maple syrup
1/2 tsp vanilla extract
1/2 tsp cinnamon
1/2 tsp nutmeg
- 3 dates
- 1 cup of raw nuts (e.g. walnuts and pecans)
- 1/4 cup of oats
- 1/2 tsp cinnamon
- 1/2 tsp nutmeg
Healthy Pumpkin Mousse Directions:
- In a food processor, mixer or blender, add all the ingredients. Start with low speed and work your way up to high speed.
- Once all the coconut chunks are pureed set aside in a bowl.
- For the “crust”, mix together dates, raw nuts, cinnamon, oats, and nutmeg in a food processor until the dates have broken down.
- Take a spoonful of the “crust” into a parfait cup and add the pumpkin mousse.
Get more recipes on my recipe page HERE.
Photo and recipe credit: Amazing student Hanna Kim (Thanks Hanna!)
At a workshop that I led last week, I was asked whether it was worth eating lettuce because it doesn’t have any nutrient value. I knew that this would be a great so-called nutrition “truth” that I can bust for you too.
All over the internet, in books, even in grocery stores, you’ll see vegetables ranked based on a score of nutrient value. But just because these scores are popular, doesn’t mean that you should believe in them.
You see, I am a true scientist. A true scientist understands what we know, and acknowledges what we don’t know. The real truth is that the scientific understanding is in its infancy regarding exactly what it is in each and every vegetable that is healthy. We know of many vitamins, minerals, and other phytonutrients. But there are likely tens, hundreds, thousands more that we haven’t yet discovered. And that’s just the nutrients that are healthy for our bodies. We’re also discovering more and more about the many roles that our gut microbiome has on our health. Science has even more of a rudimentary understanding of what it is in vegetables that makes our gut bacteria happy.
Let me share a few examples to illustrate my position. When I did my undergraduate degree in nutrition from arguably the best nutrition school in in Canada during the mid-90’s, I was taught:
- There is no nutritional value in onions and garlic. Their only role was to provide taste. Now we know that there are health-promoting phytochemicals in onions and garlic. Onions and garlic certainly do count in your daily servings of vegetables.
- Nothing about phytochemicals. That’s because the whole class of phytochemicals had not yet been discovered. All that science knew at the time was vitamins, minerals and fibre.
- That the gut microbiome simply helped digest food. It didn’t play any other role in human health. Now we’re learning that it may be linked to depression, heart health, obesity, food allergies, and a wide range of other health conditions.
Now I want to be really clear here. I’m not telling you that vegetables aren’t healthy. Vegetables certainly are healthy. In fact, I want about half of what you eat to be vegetables. I just don’t want you to buy into these various rankings of the “best” vegetables. Also, I don’t want you to buy in to the idea that certain vegetables have no nutrient value. Yes, even iceberg lettuce.
Instead of thinking that a vegetable has no nutrient value. I recommend thinking that science has not yet discovered what’s healthy about this vegetable.
So how do you apply my message? Eat lots of vegetables. Make vegetables be about half of what you eat. As wide a variety of vegetables as you can get. Eat any and all the vegetables that you enjoy. And, try new veggies often. Eat them raw sometimes. Eat them cooked sometimes. Because our bodies better absorb some nutrients when the veggies are raw. And, our bodies better absorb some nutrients when the veggies are cooked.
Photo credit: Petra Cigale on Unsplash
Reducing food waste is the ultimate win-win. It reduces our environmental impact by allowing less to go to waste. And, by using more of what we buy, it saves us money. So, I've been exploring recipes that use ingredients that normally you'd throw away. Today, student Hanna has perfected a pesto recipe made from the green leaves and stems of carrots instead of the commonly-used basil. Voila - carrot-top pesto! Perfect timing before our local carrots start to pop up in farmers' markets and produce stores. Thanks Hanna! That's Hanna's handiwork with the camera too :)
Carrot-Top Pesto Ingredients
4-5 carrot top leaves
1/2 cup of olive oil
2 garlic cloves
2 tbsp toasted pinenuts (or walnuts or macadamias or almonds)
1/4 tsp salt
Dash of pepper
Carrot-Top Pesto Directions
- To toast pine nuts: Lay out pine nuts on a baking sheet or aluminum foil for 200C for 5 minutes, watching them so they don't burn. This can also work with a nonstick pan constantly stirring the pine nuts.
- In a food processor, combine carrot tops, garlic, salt and pepper until smooth. Begin to add the olive oil until desired consistency is reached.
Check out more healthy recipes.
P.S. This recipe is gluten-free, dairy-free, egg-free, and vegan.
I don’t know about you but I’m tired of this long, extra-snowy winter. I mean snow in Vancouver and Victoria, BC in March?! So I’m choosing to think about spring. Spring is the beginning of the season for many opportunities to give picky eaters ways to explore and be interested in food. Because for many picky eaters, veggies and fruit are less scary when you’ve grown them, picked them, or chosen them from the farmers’ market. So today, I’m sharing with you some spring picky eater success strategies.
While the saying may be, “seeing is believing”. For many a picky eater “seeing is eating”.
Well at least for some. Other picky eaters will happily participate in growing, picking, and shopping but still won’t try them. Which is okay, because all of these activities still contribute to your picky eater building food-confidence, which one-day will turn into eating a wider variety of food.
Picky Eater Key to Success
So go ahead and plan family activities that involve exploring food. The key is that these activities are undertaken in the spirit of fun and exploring – not pressure to eat/try the foods. For example, if you follow up your growing of the radishes with “Try them. These are the radishes that you grew. Come on, you’ll like them.”, you likely will unintentionally undo all the confidence that you built with the activity of growing the radishes. And, next time you ask your little-one to help you in the garden, she/he will refuse because she/he knows that growing leads to pressure to eat.
- Bring your picky eater to the garden centre. Let him/her choose plants and/or seeds. Plant them together in the garden. A pot on a patio is great too.
- Fast-growing veggies like radishes and lettuce are a great match for short attention-spans.
- Do any friends or family members have veggies or fruits that you can offer to pick?
- Plan a family trip to a u-pick farm. Strawberries are great because they grow low to the ground. Check with the u-pick farm whether they allow young children (some do and some don’t).
Choose Them at a Farmers Market:
- Have a game where everyone in the family gets to choose 1 veggie or fruit to buy and try.
- Enjoy the free samples that many stalls offer.
- Encourage your child to talk to the farmer. Their enthusiasm is contagious! Ask how they grow the veggies to engage kids’ innate curiosity. For example, do the veggies grow up high in air on tall plants or secretly hidden under the ground
Looking for more success strategies for your fussy eater? Keep browsing through my blog, I share lots, such as this picky eater success tip.
It’s a new year and so it’s time for my annual post on 2017 food trends I love. I really am lucky that my work is my passion. I honestly don’t know if I’m working or ‘off the clock’ when I’m reading food magazines, browsing food blogs, shopping at farmers markets and grocery stores, and watching cooking shows. Regardless of whether I’m working or spending leisure time, being immersed in the nutrition and food-geek world, I see many, many a food trend. Lots of which make me cringe and I can’t wait until they pass. But others get me excited. Here’s the 2017 food trends I love. Enjoy!
Hot Produce: Fennel, Radish, Persimmons, Watermelon, Dragon Fruit
Now I don’t know if any of these trends will be strong enough to knock kale out of the King of Produce spot that it’s held on to for the last many years. But perhaps they’ll be strong enough to move Brussels Sprouts and cauliflower out of the spotlight (not that there’s anything wrong with Brussels sprouts and cauliflower).
I include these veggies and fruit trends on the list of food trends that I love because I hope that their trendiness will inspire you to break out of eating the same few veggies and fruit and try new things. And, overall, eat more veggies and fruit. Each vegetable and each fruit has a slightly different nutrient profile. Meaning that each one has a unique blend of vitamins, minerals, anti-oxidants, phytochemicals, fibre, fruit, and more that’s good for us that science hasn’t yet discovered. Every fruit and every vegetable is a healthy choice. And, the more variety you get, the better.
The dark shadow of the food trend is that people can get caught up in eating one particular food. Or, get worked up if their child doesn’t like one particular vegetable or fruit. But there’s nothing to get worked up about. Our bodies are amazing. We don’t need any one particular food in order to be healthy. We can meet our nutrition needs by eating a wide variety of foods. In fact, the wider the variety, the better. So use the food trend for good – as inspiration to try new foods. Or, to try new recipes for vegetables and fruit that are already familiar to you.
Looking for recipe inspiration? Check out my recipe ideas on Pinterest. So far, I have healthy recipe ideas for fennel and healthy recipe ideas for dragon fruit. Radish, persimmon, and watermelon will be coming later this year so stay tuned.
While I’m on the topic of vegetables and fruit, there’s another trend that has been gaining steam – ugly produce. This one is a win-win-win in my eyes – it encourages eating veggies and fruit (a nutrition win), encourages less food waste (environment win) and creates a new market for farmers (economic win). So what’s ‘ugly’ produce? It’s produce that is perfectly nutritious, but just doesn’t look perfect – in other words it’s ‘ugly’. For the last few generations who have done their grocery shopping at major grocery chains, the only produce that they’ve been exposed to are perfect-looking specimens. The hidden side of this fact is that a huge proportion of perfectly good vegetables and fruit are thrown out just because they don’t look perfect. But no more! Now, some major grocery chains are starting to carry ‘ugly’ produce. Farmers markets and farm-gate sales have long been where ugly produce is revered.
Buying ugly produce does require you to shift your perspective. You need to no longer judge a book by its cover (or a carrot by how straight it is). You need to be more tuned in to what’s in season, how food smells, how heavy it is, and firm/soft it is, to determine whether something is ‘good’ or not. But once you gain these new skills, it’s super easy. And, considering the win-win-win of ugly produce, you’ll likely see just how beautiful it really is. As they say, true beauty lies beneath the surface.
No Food Waste
How about a food trend that is good for the environment and saves you money? Sound too good to be true? Well that’s just what the ‘no food waste’ trend offers.
I’ve heard estimates that 40% of all food in North America is thrown in the garbage. What a huge negative environmental impact! We know that fresh water and agriculture land is under stress. Now think that almost half of what’s being grown is going to waste. It’s a tragedy.
The good news is that taking steps to solve this problem is really easy. And, it’ll save you money. One part of the solution is what I’ve described above – buying ugly produce. No longer demanding that every single piece of your produce be the equivalent of a supermodel.
The next part of the solution will save you money – buying less that you’ll throw away. This means meal planning. I’ve talked about the benefits of meal planning before. But another benefit is that you’ll buy less food that will go bad and end up in your green bin.
Got the first two solutions under your belt and now you’re ready to up your ‘no food waste’ game? The last solution also could technically fit under the meal planning title. It’s applying the nose-to-tail philosophy from meat eating to produce. In other words, including more creative recipes that use parts of the veggies/fruit that we usually throw away. Keep your eyes tuned because I’ll be sharing some recipes that I’ve been working on.
Many people get a lot of pleasure out of their weekly glass of wine or an occasional cocktail. But the reality is that alcohol does have significant calories in it. Any calories that you drink, your body doesn’t recognize, and so you still eat the same number of calories as if you hadn’t drank anything. This can contribute to creeping weight gain over time. We also know that alcohol lowers inhibitions and so while sober you may not have ordered the extra large, fully loaded nachos, after a few drinks, you’re happily elbow-deep in a platter.
It is for these reasons that I love the ‘no alcohol’ trend. The trend includes people who choose to not drink any more. And, people choosing to take a temporary break from alcohol (e.g. dry January).
What’s a non-drinker to do? More and more restaurants are now including interesting, low sugar, alcohol-free drinks on their lists. Love it! As a non-drinker myself, I really appreciate this. Whether you’re choosing to not drink for a while, or you’re the designated driver, you’re no longer relegated to choosing between plain water or a sugar-laden (or artificial sugar-laden) pop. Kombucha is showing up in more and more grocery stores and on-tap at restaurants and pubs. I’m also seeing an explosion of low sugar, no artificial-sugar, sparkling waters/pops.
Overall, this ‘no alcohol’ trend is one that I’m hoping has staying power.
While presenting a workshop on Monday, a small group of parents pulled me aside and asked a question that I get asked all the time. “What do you think about sneaking in vegetables? Is hiding veggies okay?” You know what these parents mean. There are several very popular cookbooks, one by a celebrity, made up entirely of recipes that involve pureeing vegetables and hiding them in other foods. Classic examples are squash in mac and cheese and beets in chocolate cake.
Most parents who ask me this question do so with a sheepish look in their faces. They’re expecting me to tell them that it’s a horrible idea. However, my answer isn’t a simple – “good” or “bad”. Here’s the details.
Studies show that kids do eat more servings of vegetables in families where they add pureed vegetables to dishes. Also, most of us could use to eat more veggies. So exploring new dishes that include veggies is a fantastic idea. Go ahead, incorporate more vegetables into your eating habits!
However, if you are going to use this technique, there are two very important steps to take to make sure that you are both helping your child eat more veggies now AND helping teach them to choose to eat vegetables as a life-long habit. (And, not inadvertently creating an even more picky eater).
Hiding Veggies Important Step #1:
If all you’re serving your child is mac and cheese and chocolate cake, all they’re learning is to eat mac and cheese and chocolate cake. You may know that there’s squash in the mac and cheese and beets in the cake, but your child doesn’t. If you choose to sneak in veggies, also be sure to serve obvious veggies too. For example, serve steamed broccoli on the side of that mac and cheese. Even if your child doesn’t eat the obvious veggies, you’re role modeling choosing to eat vegetables – an important lesson for life-long healthy eating habits.
Hiding Veggies Important Step #2:
Don’t deny that there are veggies in a dish if your child asks. One book I read recommended waking up in the middle of the night to prepare your purees and freeze them so that you can sneak them into dishes without your kids seeing you. Um, no. Not what I recommend. First, I want you to get the few hours of precious sleep that you can get. Second, picky kids are smart and pay close attention to detail. They’re also little conspiracy theorists about food. They will figure out that you’ve been hiding veggies in your dishes. Then, they’ll wonder what else you’ve been hiding and will become even more suspicious of their food. Not the path you want to head down. Don’t deny what you’ve put in a dish. At the same time, you aren’t a waiter at a two Michelin star restaurant. You don’t need to describe every ingredient and every step that you took to prepare each dish. In other words, you don’t need to divulge what’s in a dish, but don’t deny what’s in it either. If your child asks, answer them directly in a neutral, matter of fact tone.
It's back, my annual home-made ice pop recipe collection. Some may call these homemade popsicles or paletas. Or, frozen smoothies. Whatever you call them they're a delicious summer treat. I want to give a big shout out to Carla, the dietetic student who is volunteering with me for creating these recipes. My directions for her: the recipes need to be simple, include no added sugar, include fruit and even veggies, and only include easy-to-find ingredients. Oh, and of course, that they needed to be delicious. She sure delivered.
The directions for each recipe are the same:
- Combine all ingredients in a blender.
- Blend until smooth.
- Pour into molds.
Enjoy her work!
P.S. For more delicious, healthy frozen recipes, check out these links:
Inspired by: http://www.kiipfit.com/spinach-kiwi-popsicles/
Packed with fruit and leafy greens, the vibrant green color of these popsicles comes from blending both kiwi and spinach.
- 1/3 cup spinach
- 1 kiwi
- 2 drops lemon juice
- 1/3 cup water
Inspired by: http://revisfoodography.com/2015/04/mango-lassi/
Inspired from a classic Indian cold drink, mango lassi is a blend of yogurt, fruit and spice. Not a fan of cardamom? Simply omit the spice and you can still enjoy it as a mango-yogurt blend.
- 1 mango
- 160 ml greek yogurt
- 1 small pinch cardamom (to taste)
This very simple and refreshing recipe allows you to use ripe or extra ripe cantaloupes. No added sugar necessary.
- ¾ cup cantaloupe
- ¼ cup water
Get more healthy home-made ice pop recipes here:
Full-meal salads are my absolute go-to during the summer months. And, with the growing trend of salads-in-a-jar, I can see that others are catching on. The secret to a perfectly balanced, full-meal salad (that will actually fill you up) is to include whole grains, protein, and healthy fats along with all those veggies. I also like to include a sweet note (such as fresh or dried fruit) and something crunchy for texture. Often foods will do double duty, such as chopped nuts providing protein, healthy fat, and crunch.
Baby- and Kid-Friendly Version: Serve each salad component “deconstructed”, in it’s own little pile. Serve a small dish (ramekin) of the dressing on the side. Or, do a make-your-own salad bar with the ingredients. There is no extra work for baby-friendly, finger-foods – just place pieces on your baby’s tray.
Protein Food Ideas:
- Beans and lentils, canned or cooked from dry
- Tofu cut into cubes or fingers
- Grated or cubed cheese
- Leftover meat and poultry, e.g. shredded chicken, sliced steak
- Chopped or slivered nuts
- Seeds, e.g. pumpkin seeds, hemp hearts
- Hard boiled eggs
Whole Grain Ideas (Starch Foods):
- Cooked and cooled pasta
- Buckwheat (soba) noodles
- Brown rice
- Wild rice
- Pot barley
- Cooked and cubed sweet potatoes
For inspiration, here are two of my favourite full-meal salads. You’ll notice that there aren’t amounts listed for the salad ingredients – make as much or as little as you want.
Black Bean Salad
Bell pepper (red, yellow, or orange)
Corn (cooked from frozen or cut off the cob)
1 TBSP Vegetable oil (I particularly like avocado oil)
1 TBSP White wine vinegar
2 TBSP Lime juice
1/4 tsp Ground cumin
1/8 tsp Cayenne pepper (optional)
Farro, cooked and cooled
Green lentils*, cooked and cooled
Kale, cut into thin ribbons and massaged with a dash of oil, vinegar and salt
1 TBSP Good, extra virgin olive oil
3 TBSP Balsamic vinegar
Fresh cracked pepper
* Do you have difficulty digesting beans? Give lentils a try, they’re less “musical”, and check out my tips for making beans and lentils less gassy.
Every year students in the UBC dietetics program are required to write an article on nutrition for the public. I’m always happy to offer an opportunity for the students to write for you. They do a great job of researching a topic that you’ve been asking me about. This year I asked students Julia Chien and Raman Rattanpal to look into what foods can help improve the look of our skin. There’s been a lot of coverage in the media about nutrition helpers for collagen and I wanted to know the lowdown on what scientific evidence existed. Read on to find out what Raman and Julia discovered about foods to prevent skin aging.
How Does Our Skin Age?
Because skin is the largest visible organ, it is often the most noticeable sign of aging. Skin aging is affected by both genetic and environmental factors. Environmental factors primarily include chronic sun exposure, smoking, sleep deprivation, and inadequate nutrition. As women age, decreasing estrogen levels also negatively affects skin. These factors contribute to the development of skin wrinkles and reduction of skin elasticity through the breakdown of collagen and elastic fibres in aging skin.
I’m sure that you’re not surprised about smoking and sun exposure being on this list. Add the effect on your skin to the list of reasons why it’s important for you to get some sleep.
Here’s the details on foods and beverages:
- Vitamin C-Rich Foods
e.g. Bell peppers, citrus fruits, dark leafy greens, strawberries
- Promote collagen synthesis: Vitamin C regulates collagen, an important protein necessary for stability of the skin and reduction of wrinkling.
- Act as a depigmenting agent: Melanin is a pigment that gives colour to skin. Higher intakes of Vitamin C foods help with reducing dark spots or hyperpigmentation of the skin by decreasing the formation of melanin.
- Improves skin thickness: A naturally occurring compound called isoflavones are found in foods such as tofu. Isoflavones promote cell growth by interacting with estrogen, resulting in improved skin structure and strength.
- Improves skin elasticity: Isoflavones also impact skin elasticity by increasing collagen and elastin fibres.
3. Bone Broth
- No scientific evidence: Although bone broth contains collagen, dietary collagen is not delivered straight to your skin after it is absorbed. Similar to other proteins, collagen is broken down into amino acids and is used by your body as building blocks for other biological processes. There is no evidence to support any anti-aging mechanisms.
- Provides UV protection: Antioxidants are compounds that help protect the skin from premature skin aging. Cocoa, the main constituent in milk and dark chocolate, is rich in antioxidants. Antioxidant-rich cocoa consumption has been shown to improve blood flow in the skin and increased protection of UV light. However, the exact mechanisms by which antioxidants promote these effects are still lacking.
5. Green Tea
- Provides UV Protection: Similar to cocoa, antioxidants in green tea have protective effects of the skin against UV light.
- Promotes collagen synthesis: Antioxidants in green tea inhibit collagenases, which are proteins that breakdown collagen in the skin, resulting in anti-wrinkle effects.
Raman & Julia:
We believe a diet containing a variety of fruit and vegetables is the healthiest way to maintain overall health and the appearance of youthful skin. A diet with ample vitamin C-rich foods and tofu benefits not only your skin, but it is also an excellent source of other nutrients and health benefits. On the other hand, there is little evidence in regards to the benefits of consuming bone broth soup for building collagen for the skin. As this is a relatively new food fad, more research is required. For those chocolate lovers out there - it is easy to overindulge while snacking on chocolate, but we recommend enjoying dark chocolate in moderation. Lastly, green tea has been linked to several health benefits including anti-aging effects on skin and it is also a great way to keep hydrated. More research needs to be conducted to draw concrete conclusions about particular foods and aging skin, but it does not hurt to incorporate these foods into a healthy diet.
I agree with Raman and Julia. The evidence is interesting (and hopeful) but far from conclusive for the effect of vitamin C, tofu, chocolate, and green tea on collagen. We know of a whole slew of other positive health effects for fruits and veggies so there’s nothing to lose by eating them. If you enjoy tofu and green tea, I recommend continuing to enjoy them. Maybe they have a positive effect on your skin. I don’t know if we can call chocolate a health food yet, but it certainly is a source of pleasure, so continue to enjoy it. I’m not buying the benefits of bone broth. But if you enjoy drinking it, it’s at least a source of hydration without any sugar or preservatives.